Month: September 2024
This Co-Pilot page is blocking my access to use my email for work.
How can I get past this **bleep** Co-Pilot page. I need to access my email for work and can’t get to it because this thing I don’t even need is blocking it.
How can I get past this **bleep** Co-Pilot page. I need to access my email for work and can’t get to it because this thing I don’t even need is blocking it. Read More
Changing channel from the Dev to Beta.
I don’t know why it is grey and not selectable but others like canary and release preview are selectable. But these are unstable hence I wanted to move back to beta channel. I also approached from get help but no solution was found from their side also. So I request here to is there anybody who can help me in sorting out this problem?
I don’t know why it is grey and not selectable but others like canary and release preview are selectable. But these are unstable hence I wanted to move back to beta channel. I also approached from get help but no solution was found from their side also. So I request here to is there anybody who can help me in sorting out this problem? Read More
Matlab not reading data fast enough from arduino.
My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
}My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
} My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
} arduino, serial, char MATLAB Answers — New Questions
How to add a 2D plot to an existing 3D plot by sharing the same axes?
Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this?Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this? Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this? contour3, 3d plots MATLAB Answers — New Questions
Error: Out of memory page displayed regullary and I can’t turn off the screen.
I don’t use the Microsoft Edge and I use Chrome.
Everyday Error code: out-of-memory page that hasn’t got any navigation bar displayed and I can’t close it.
It covers my screen so I don’t see other screens and I need to restart again.
It’s really bad for me.
My computer Ram is 32GB and memory is ok when the page displayed.
How can I fix it?
I don’t use the Microsoft Edge and I use Chrome.Everyday Error code: out-of-memory page that hasn’t got any navigation bar displayed and I can’t close it.It covers my screen so I don’t see other screens and I need to restart again.It’s really bad for me.My computer Ram is 32GB and memory is ok when the page displayed.How can I fix it? Read More
Actualización Windows 11 Insider
Tras actualizar repetidas veces el Windows de mi portátil, me sigue apareciendo un mensaje emergente en el que dice: “Esta versión de Windows expirará pronto. La versión de Windows expirará en 15/09/2024. Debe mover a una nueva compilación tan pronto como sea posible. Conectarse a Internet para obtener más información.”
Hablé con uno de sus técnicos pero no pudo solucionarlo y me comentó que os hablara a vosotros ya que hoy mismo el Windows Insider expirará ya que es una versión beta.
Tras actualizar repetidas veces el Windows de mi portátil, me sigue apareciendo un mensaje emergente en el que dice: “Esta versión de Windows expirará pronto. La versión de Windows expirará en 15/09/2024. Debe mover a una nueva compilación tan pronto como sea posible. Conectarse a Internet para obtener más información.”Hablé con uno de sus técnicos pero no pudo solucionarlo y me comentó que os hablara a vosotros ya que hoy mismo el Windows Insider expirará ya que es una versión beta. Read More
2D plot an equation
Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant .Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant . Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant . 2d plot MATLAB Answers — New Questions
how to create a robot from DH parameters
Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′)Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′) Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′) manipulators, rigidbody, forward kinematics, rigidbodytree MATLAB Answers — New Questions
“Failed – Network error”
I have an issue with onedrive where I use the internet version or the application. When i download the files i want, it goes extremely slow (100-700Kb/s). After it has finished downloading all the data it says “Failed – Network error.” After this happens, it crashes my internet connection to my modem and my modem has to reset the connection. When i use any other website or app to download a file there is absolutely no problem and my speed is normal (10-16Mb/s) with no “network error”. I have tried other networks to download from onedrive and have the same exact problem. Super frustrating especially when you want to download files in Gb, wait all that time to have it fail.
I have an issue with onedrive where I use the internet version or the application. When i download the files i want, it goes extremely slow (100-700Kb/s). After it has finished downloading all the data it says “Failed – Network error.” After this happens, it crashes my internet connection to my modem and my modem has to reset the connection. When i use any other website or app to download a file there is absolutely no problem and my speed is normal (10-16Mb/s) with no “network error”. I have tried other networks to download from onedrive and have the same exact problem. Super frustrating especially when you want to download files in Gb, wait all that time to have it fail. Read More
How used G.711 codec?
<<http://mathworks.com/matlabcentral/images/surf.gif>><<http://mathworks.com/matlabcentral/images/surf.gif>> <<http://mathworks.com/matlabcentral/images/surf.gif>> dsp, communication MATLAB Answers — New Questions
Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever.
Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this.Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this. Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this. error, matlab connector, installation MATLAB Answers — New Questions
integral using “int” function
Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t)Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t) Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t) using int function integral, plot using fplot MATLAB Answers — New Questions
MATLAB online default language
Hi all,
I need help with setting the default language as English when I open MATLAB in Chrome.
Thanks in advance. ZainHi all,
I need help with setting the default language as English when I open MATLAB in Chrome.
Thanks in advance. Zain Hi all,
I need help with setting the default language as English when I open MATLAB in Chrome.
Thanks in advance. Zain matlab online MATLAB Answers — New Questions
I tried to communicate using matlab industrial communication opcuaclient to OPC factory server when it gives an error
I tried to communicate using matlab industrial communication opcuaclient to OPC factory server when it gives an error "OPCEnum service is not operating correctly. Repair OPC Core Components." Its like the matlab can’t communicate.I tried to communicate using matlab industrial communication opcuaclient to OPC factory server when it gives an error "OPCEnum service is not operating correctly. Repair OPC Core Components." Its like the matlab can’t communicate. I tried to communicate using matlab industrial communication opcuaclient to OPC factory server when it gives an error "OPCEnum service is not operating correctly. Repair OPC Core Components." Its like the matlab can’t communicate. opcua communication MATLAB Answers — New Questions
Regarding bar graphs for large data
Hey everyone,
I have an issue with the bar graphs x axis data.
I have a large amount of data say for about 1000 iterations and more. It is the load data for every hour of the day along with the number of iterations the load value is being repeated in those 1000 iterations. i.e. the probability of occurrence of the load. But when I create a 2d graph for every hour with load on x axis and occurrence on y axis, the data on y-axis comes exactly, but my load data starts from 1 and ends abruptly without reaching the end value. But the graph shape is correct, I feel the data on the x axis is being given incorrectly according to my research on them for many number of times.I know about the set function but I cannot keep setting the x axis for many iterations as in my case. Did anyone else face this. Can someone guide me through this ?
Thank youHey everyone,
I have an issue with the bar graphs x axis data.
I have a large amount of data say for about 1000 iterations and more. It is the load data for every hour of the day along with the number of iterations the load value is being repeated in those 1000 iterations. i.e. the probability of occurrence of the load. But when I create a 2d graph for every hour with load on x axis and occurrence on y axis, the data on y-axis comes exactly, but my load data starts from 1 and ends abruptly without reaching the end value. But the graph shape is correct, I feel the data on the x axis is being given incorrectly according to my research on them for many number of times.I know about the set function but I cannot keep setting the x axis for many iterations as in my case. Did anyone else face this. Can someone guide me through this ?
Thank you Hey everyone,
I have an issue with the bar graphs x axis data.
I have a large amount of data say for about 1000 iterations and more. It is the load data for every hour of the day along with the number of iterations the load value is being repeated in those 1000 iterations. i.e. the probability of occurrence of the load. But when I create a 2d graph for every hour with load on x axis and occurrence on y axis, the data on y-axis comes exactly, but my load data starts from 1 and ends abruptly without reaching the end value. But the graph shape is correct, I feel the data on the x axis is being given incorrectly according to my research on them for many number of times.I know about the set function but I cannot keep setting the x axis for many iterations as in my case. Did anyone else face this. Can someone guide me through this ?
Thank you bar graphs. MATLAB Answers — New Questions
How to copy figure from Sisotool?
Hi
I am using the latest Matlab R2016a.
There is a problem while I using sisotool
How do I copy figure form sisotool ?
There is no "EDIT" button in the GUI of sisotool like the previous version of Matlab.Hi
I am using the latest Matlab R2016a.
There is a problem while I using sisotool
How do I copy figure form sisotool ?
There is no "EDIT" button in the GUI of sisotool like the previous version of Matlab. Hi
I am using the latest Matlab R2016a.
There is a problem while I using sisotool
How do I copy figure form sisotool ?
There is no "EDIT" button in the GUI of sisotool like the previous version of Matlab. r2016a, sisotool, copy figure MATLAB Answers — New Questions
subgraph from graph matlab function
if i have a graph such as
WW = [20 10 12 14 12 10 20];
from=[1 2 2 3 4 3 5];
to = [4 1 4 2 3 5 4];
DG = sparse(from,to,WW); UG = tril(DG + DG’);
d=graphallshortestpaths(UG,’directed’,false);
is there any method to take subgraph for example(graph that contain only nodes 1 3 5)
thanks in advance
hassanif i have a graph such as
WW = [20 10 12 14 12 10 20];
from=[1 2 2 3 4 3 5];
to = [4 1 4 2 3 5 4];
DG = sparse(from,to,WW); UG = tril(DG + DG’);
d=graphallshortestpaths(UG,’directed’,false);
is there any method to take subgraph for example(graph that contain only nodes 1 3 5)
thanks in advance
hassan if i have a graph such as
WW = [20 10 12 14 12 10 20];
from=[1 2 2 3 4 3 5];
to = [4 1 4 2 3 5 4];
DG = sparse(from,to,WW); UG = tril(DG + DG’);
d=graphallshortestpaths(UG,’directed’,false);
is there any method to take subgraph for example(graph that contain only nodes 1 3 5)
thanks in advance
hassan subgraph, graph, graph theory MATLAB Answers — New Questions
Monthly to annual totals
Hello,
I am hoping to convert monthly totals to annual totals using a loop. However, instead of using the calendar year (Jan-Dec) I want to use the water year which runs from October to September. I have a number of time series organised in a structure (468 rows, 1 column) starting from Oct 1960 and ending in Sept 1999.
I have attempted to sum up each 12 consecutive rows (1:12, 13:24 and so on) to get the annual totals but my code (below) is not doing the job (I am not sure what exactly it is doing) and I was hoping I could get some help fixing it. Many thanks!
for k=1:length(varnames)
p=0;
for i=1:39
for months=1:12
p=p+1;
annual_flow.(varnames{k})(i,1)=flow_monthly.(varnames{k})(p,1);
end
end
endHello,
I am hoping to convert monthly totals to annual totals using a loop. However, instead of using the calendar year (Jan-Dec) I want to use the water year which runs from October to September. I have a number of time series organised in a structure (468 rows, 1 column) starting from Oct 1960 and ending in Sept 1999.
I have attempted to sum up each 12 consecutive rows (1:12, 13:24 and so on) to get the annual totals but my code (below) is not doing the job (I am not sure what exactly it is doing) and I was hoping I could get some help fixing it. Many thanks!
for k=1:length(varnames)
p=0;
for i=1:39
for months=1:12
p=p+1;
annual_flow.(varnames{k})(i,1)=flow_monthly.(varnames{k})(p,1);
end
end
end Hello,
I am hoping to convert monthly totals to annual totals using a loop. However, instead of using the calendar year (Jan-Dec) I want to use the water year which runs from October to September. I have a number of time series organised in a structure (468 rows, 1 column) starting from Oct 1960 and ending in Sept 1999.
I have attempted to sum up each 12 consecutive rows (1:12, 13:24 and so on) to get the annual totals but my code (below) is not doing the job (I am not sure what exactly it is doing) and I was hoping I could get some help fixing it. Many thanks!
for k=1:length(varnames)
p=0;
for i=1:39
for months=1:12
p=p+1;
annual_flow.(varnames{k})(i,1)=flow_monthly.(varnames{k})(p,1);
end
end
end loop, structure, annual total MATLAB Answers — New Questions
Non linear system by Newton-Raphson
Hey, I m trying to solve a non-linear system by Newton-Raphson method with an iteration max of 10 and 10^(-8) max error.
It ‘s my 1st time using matrices in Matlab and i think i don t get it right because my answer shoul be somewhat around x=0,88 y=0,99
I would love to know what is going wrong in my code ( I hope my derivatives are right (they should be))
thanks !
f1=@(x,y) atan(y)-y.*x.^2;
f2=@(x,y) x.^2+y.^2-2*x;
x1 = 1;
y1 = 1;
P = [x1 ; y1];
F= @(P) [atan(y1)-y1.*x1.^2 ; x1.^2+y1.^2-2*x1];
JF = @(P) [-2.*x1.*y1 (1/(1+y1.^2))-(x1.^(-2)) ; 2.*x1-2 2.*y1];
error = 1;
k = 1;
while k<10 && error > 10^(-8)
Q = P-JF(P)F(P);
error = abs( norm(Q-P)/norm(Q+eps));
P=Q;
k=k+1;
end
PHey, I m trying to solve a non-linear system by Newton-Raphson method with an iteration max of 10 and 10^(-8) max error.
It ‘s my 1st time using matrices in Matlab and i think i don t get it right because my answer shoul be somewhat around x=0,88 y=0,99
I would love to know what is going wrong in my code ( I hope my derivatives are right (they should be))
thanks !
f1=@(x,y) atan(y)-y.*x.^2;
f2=@(x,y) x.^2+y.^2-2*x;
x1 = 1;
y1 = 1;
P = [x1 ; y1];
F= @(P) [atan(y1)-y1.*x1.^2 ; x1.^2+y1.^2-2*x1];
JF = @(P) [-2.*x1.*y1 (1/(1+y1.^2))-(x1.^(-2)) ; 2.*x1-2 2.*y1];
error = 1;
k = 1;
while k<10 && error > 10^(-8)
Q = P-JF(P)F(P);
error = abs( norm(Q-P)/norm(Q+eps));
P=Q;
k=k+1;
end
P Hey, I m trying to solve a non-linear system by Newton-Raphson method with an iteration max of 10 and 10^(-8) max error.
It ‘s my 1st time using matrices in Matlab and i think i don t get it right because my answer shoul be somewhat around x=0,88 y=0,99
I would love to know what is going wrong in my code ( I hope my derivatives are right (they should be))
thanks !
f1=@(x,y) atan(y)-y.*x.^2;
f2=@(x,y) x.^2+y.^2-2*x;
x1 = 1;
y1 = 1;
P = [x1 ; y1];
F= @(P) [atan(y1)-y1.*x1.^2 ; x1.^2+y1.^2-2*x1];
JF = @(P) [-2.*x1.*y1 (1/(1+y1.^2))-(x1.^(-2)) ; 2.*x1-2 2.*y1];
error = 1;
k = 1;
while k<10 && error > 10^(-8)
Q = P-JF(P)F(P);
error = abs( norm(Q-P)/norm(Q+eps));
P=Q;
k=k+1;
end
P newton-raphson, non linear systems MATLAB Answers — New Questions
get real-time new coming sensor data from mobile phone, old sensor data is not include?
I want to get real-time sensor data using mobile phone,
% Initialize the mobile device object
m = mobiledev;
% Enable the accelerometer sensor
m.AccelerationSensorEnabled = 1;
% Start logging accelerometer data
m.Logging = 1;
% Set the figure for real-time plotting
figure;
duration = 15; % Duration of data collection in seconds
startTime = tic; % Start the timer
% Loop to collect and display data in real-time for 15 seconds
while toc(startTime) < duration
[accelData, timeStamps] = accellog(m); % Retrieve accelerometer data and timestamps
if ~isempty(accelData)
% Plot X, Y, Z axis acceleration in different colors
plot(timeStamps, accelData(:, 1), ‘r’); hold on;
plot(timeStamps, accelData(:, 2), ‘g’);
plot(timeStamps, accelData(:, 3), ‘b’);
xlabel(‘Time (s)’);
ylabel(‘Acceleration (m/s^2)’);
legend(‘X-axis’, ‘Y-axis’, ‘Z-axis’);
drawnow; % Update the plot in real-time
hold off;
end
pause(0.1); % Pause for smooth plotting
end
% Stop logging after the duration
m.Logging = 0;
% Optionally, retrieve all the logged data for further processing
[accelData, timeStamps] = accellog(m);
The function accellog(m) returns all logged accelerometer data from the start of the logging session, including both old and new data, in every call. It does not return only the new sensor data since the last call.
This means that in the code you provided, each time accellog(m) is called inside the loop, it will return the complete set of logged accelerometer data from the moment m.Logging = 1 was set, up to the current time.
How can I get the new coming sensor data? (logging=0 , logging=1 again is not a good way)I want to get real-time sensor data using mobile phone,
% Initialize the mobile device object
m = mobiledev;
% Enable the accelerometer sensor
m.AccelerationSensorEnabled = 1;
% Start logging accelerometer data
m.Logging = 1;
% Set the figure for real-time plotting
figure;
duration = 15; % Duration of data collection in seconds
startTime = tic; % Start the timer
% Loop to collect and display data in real-time for 15 seconds
while toc(startTime) < duration
[accelData, timeStamps] = accellog(m); % Retrieve accelerometer data and timestamps
if ~isempty(accelData)
% Plot X, Y, Z axis acceleration in different colors
plot(timeStamps, accelData(:, 1), ‘r’); hold on;
plot(timeStamps, accelData(:, 2), ‘g’);
plot(timeStamps, accelData(:, 3), ‘b’);
xlabel(‘Time (s)’);
ylabel(‘Acceleration (m/s^2)’);
legend(‘X-axis’, ‘Y-axis’, ‘Z-axis’);
drawnow; % Update the plot in real-time
hold off;
end
pause(0.1); % Pause for smooth plotting
end
% Stop logging after the duration
m.Logging = 0;
% Optionally, retrieve all the logged data for further processing
[accelData, timeStamps] = accellog(m);
The function accellog(m) returns all logged accelerometer data from the start of the logging session, including both old and new data, in every call. It does not return only the new sensor data since the last call.
This means that in the code you provided, each time accellog(m) is called inside the loop, it will return the complete set of logged accelerometer data from the moment m.Logging = 1 was set, up to the current time.
How can I get the new coming sensor data? (logging=0 , logging=1 again is not a good way) I want to get real-time sensor data using mobile phone,
% Initialize the mobile device object
m = mobiledev;
% Enable the accelerometer sensor
m.AccelerationSensorEnabled = 1;
% Start logging accelerometer data
m.Logging = 1;
% Set the figure for real-time plotting
figure;
duration = 15; % Duration of data collection in seconds
startTime = tic; % Start the timer
% Loop to collect and display data in real-time for 15 seconds
while toc(startTime) < duration
[accelData, timeStamps] = accellog(m); % Retrieve accelerometer data and timestamps
if ~isempty(accelData)
% Plot X, Y, Z axis acceleration in different colors
plot(timeStamps, accelData(:, 1), ‘r’); hold on;
plot(timeStamps, accelData(:, 2), ‘g’);
plot(timeStamps, accelData(:, 3), ‘b’);
xlabel(‘Time (s)’);
ylabel(‘Acceleration (m/s^2)’);
legend(‘X-axis’, ‘Y-axis’, ‘Z-axis’);
drawnow; % Update the plot in real-time
hold off;
end
pause(0.1); % Pause for smooth plotting
end
% Stop logging after the duration
m.Logging = 0;
% Optionally, retrieve all the logged data for further processing
[accelData, timeStamps] = accellog(m);
The function accellog(m) returns all logged accelerometer data from the start of the logging session, including both old and new data, in every call. It does not return only the new sensor data since the last call.
This means that in the code you provided, each time accellog(m) is called inside the loop, it will return the complete set of logged accelerometer data from the moment m.Logging = 1 was set, up to the current time.
How can I get the new coming sensor data? (logging=0 , logging=1 again is not a good way) matlab mobile MATLAB Answers — New Questions