Po = 400000;
Patm = 101325;
rhowater = 1000;
Vo = .00133333;
Anoz = pi*(.010668)^2;
syms P t
P = Po + (((-1.4*P*((P/Po)^(5/7)))/Vo)*(Anoz*sqrt((P-Patm)/rhowater)))*t;
Eqn = solve(P,t);
Peq = Eqn;
fplot(Peq,[0 1])
ylim ([0 450000])
xlabel(‘time (s) ‘)
ylabel(‘Pressure (Pa) ‘)Po = 400000;
Patm = 101325;
rhowater = 1000;
Vo = .00133333;
Anoz = pi*(.010668)^2;
syms P t
P = Po + (((-1.4*P*((P/Po)^(5/7)))/Vo)*(Anoz*sqrt((P-Patm)/rhowater)))*t;
Eqn = solve(P,t);
Peq = Eqn;
fplot(Peq,[0 1])
ylim ([0 450000])
xlabel(‘time (s) ‘)
ylabel(‘Pressure (Pa) ‘) Po = 400000;
Patm = 101325;
rhowater = 1000;
Vo = .00133333;
Anoz = pi*(.010668)^2;
syms P t
P = Po + (((-1.4*P*((P/Po)^(5/7)))/Vo)*(Anoz*sqrt((P-Patm)/rhowater)))*t;
Eqn = solve(P,t);
Peq = Eqn;
fplot(Peq,[0 1])
ylim ([0 450000])
xlabel(‘time (s) ‘)
ylabel(‘Pressure (Pa) ‘) plotting MATLAB Answers — New Questions

​

Post Content Post Content fplot, roots, plotting MATLAB Answers — New Questions

​

I’m trying to assign a column in rawTable with a specific header to variable ‘y’ and I’m using the string to locate and assign the values but I keep getting errors. Any way I can assign the string as a variable instead?

for i = 1:size(Sheets)
rawTable = readtable(‘TypeA vs. Type C.xlsx’,’Sheet’,Sheets(i,1));
x = rawTable.Time;
figure;
string = strcat(Types(t,1),’_’,Conditions(c,1),’_’,Muscles(m,1));
y = rawTable.string;
plot(x,y);

Error using .
Unrecognized table variable name ‘string’.
y = rawTable.string;I’m trying to assign a column in rawTable with a specific header to variable ‘y’ and I’m using the string to locate and assign the values but I keep getting errors. Any way I can assign the string as a variable instead?

for i = 1:size(Sheets)
rawTable = readtable(‘TypeA vs. Type C.xlsx’,’Sheet’,Sheets(i,1));
x = rawTable.Time;
figure;
string = strcat(Types(t,1),’_’,Conditions(c,1),’_’,Muscles(m,1));
y = rawTable.string;
plot(x,y);

Error using .
Unrecognized table variable name ‘string’.
y = rawTable.string; I’m trying to assign a column in rawTable with a specific header to variable ‘y’ and I’m using the string to locate and assign the values but I keep getting errors. Any way I can assign the string as a variable instead?

for i = 1:size(Sheets)
rawTable = readtable(‘TypeA vs. Type C.xlsx’,’Sheet’,Sheets(i,1));
x = rawTable.Time;
figure;
string = strcat(Types(t,1),’_’,Conditions(c,1),’_’,Muscles(m,1));
y = rawTable.string;
plot(x,y);

Error using .
Unrecognized table variable name ‘string’.
y = rawTable.string; string, table, variable MATLAB Answers — New Questions

​

Hi
I am looking for a fast code to do the following:
get a matrix with elements between 0 and 15
create a new matrix, double the size (both rows and columns)
for each element in the first matrix, set the binary representation of this element in the new matrix, in a 2×2 way.
first example
for a 1×1 input matrix:
A =

7
The result will be:
B =

0 1
1 1

Second example
for a 2×2 input matrix:
A =
0 2
1 3
The result will be:
B =

0 0 0 0
0 0 1 0
0 0 0 0
0 1 1 1
=

Currently, I do this with a slow for loop.
I would greatly apreciate your help.
DrorHi
I am looking for a fast code to do the following:
get a matrix with elements between 0 and 15
create a new matrix, double the size (both rows and columns)
for each element in the first matrix, set the binary representation of this element in the new matrix, in a 2×2 way.
first example
for a 1×1 input matrix:
A =

7
The result will be:
B =

0 1
1 1

Second example
for a 2×2 input matrix:
A =
0 2
1 3
The result will be:
B =

0 0 0 0
0 0 1 0
0 0 0 0
0 1 1 1
=

Currently, I do this with a slow for loop.
I would greatly apreciate your help.
Dror Hi
I am looking for a fast code to do the following:
get a matrix with elements between 0 and 15
create a new matrix, double the size (both rows and columns)
for each element in the first matrix, set the binary representation of this element in the new matrix, in a 2×2 way.
first example
for a 1×1 input matrix:
A =

7
The result will be:
B =

0 1
1 1

Second example
for a 2×2 input matrix:
A =
0 2
1 3
The result will be:
B =

0 0 0 0
0 0 1 0
0 0 0 0
0 1 1 1
=

Currently, I do this with a slow for loop.
I would greatly apreciate your help.
Dror matrix, binary MATLAB Answers — New Questions

​

I have been attempting to install the support package "Embedded Coder Support Package for STMicroelectronics Discovery Boards" in the r2018a version of matlab, while I keep getting this error. I have tried to run matlab as Administrator, but it didn’t work.
After installing this, I tried to install another support package, Embedded Coder Support Package for ARM Cortex-M Processors, and it is successful. So I believe there is no issue about my internet.
Somebody please help me.I have been attempting to install the support package "Embedded Coder Support Package for STMicroelectronics Discovery Boards" in the r2018a version of matlab, while I keep getting this error. I have tried to run matlab as Administrator, but it didn’t work.
After installing this, I tried to install another support package, Embedded Coder Support Package for ARM Cortex-M Processors, and it is successful. So I believe there is no issue about my internet.
Somebody please help me. I have been attempting to install the support package "Embedded Coder Support Package for STMicroelectronics Discovery Boards" in the r2018a version of matlab, while I keep getting this error. I have tried to run matlab as Administrator, but it didn’t work.
After installing this, I tried to install another support package, Embedded Coder Support Package for ARM Cortex-M Processors, and it is successful. So I believe there is no issue about my internet.
Somebody please help me. third party package MATLAB Answers — New Questions

​

I am trying to achieve parallel exectution of two functions that would normally need two separate matlab(r2023a) windows open in order to successfuly execute. The PULM() function is a MEX funtion and DMD_Funtion is a matlab function that uses a library (‘alp4395’). because of this, a threadpool does not work because ‘Use of MEX functions is not supported on a thread-based worker.’ The reason either a parallel processing function or 2 MATLAB windows are needed is because PULM() needs to initialize into its ready state then it waits for a trigger (meaning matlab will stay ‘Busy’ and wont execute any other commands until PULM is finished, which waits indefinitely for a trigger), which is the DMD_Function(), then finishes the rest of the PULM MEX functions to collect data and exit.
I have been trying to use parpool(‘Processes’) instead, however it seems that it is unable to successfully ‘exit gracefully’ from the C code, probably due to timing issues with the trigger. PULM() needs several seconds to be in its ‘Ready’ state before the DMD_Funtion() is ran or else the PULM() will be waiting for triggers and basically never exit. I noticed that even with the Pause(5) or even 10 that I put in before the the DMD funtion is ran, all that happens is that both workers wait 5 seconds before running simultaneously instead of being delayed like they are supposed to. How do I delay the exectution of the DMD funtion? is it possible that i = 3 is running before i = 2 causing both of interations to pause before executing? Are there any other ways I could accomplish parallel processing in this way without the use of 2 MATLAB windows?
Initially I thought using 2 push buttons on a GUI would work because I believed that push buttons worked in parallel, but I soon realized they were executed sequentially. So I now have to use parallel toolbox functions so that one push button with execute everything in parallel.
Here’s the code for the parfor:
parfor i=2:3
if i==2

%pause(1);
%DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber=768/SamplingRate) 768/32
PULM(PonitNumber,NumberofRecording,AvergeNumber);
%disp(‘run 1’);
disp(‘done 1’)

else
pause(5);
DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber);

disp(‘done 2’)

end

end

Note: ‘done 1’ does not display meaning it does not complete the MEX function but ‘All records were saved to file’ does display which is right before ‘Exit Gracefully’ for the Digitizer.
In a separate code I tried to why the pause was just making them both wait 5 seconds then simultaneously running instead of being delayed. Threadpools seem to do what I want, it executes i==2 and delays i == 3. I am still not sure as to why Processespools doesn’t do the same thing. I even tried to stop the execution of the i==3 line by having it check if i == 2 wrote in a file, but it just ccomes up with an error. this is the reason why I was wondering if i==3 is being executed faster than i==2.
stateFile = ‘state.txt’;
parfor i = 2:3
if i == 2
%pause(5);
disp(‘hi’)

fid = fopen(stateFile, ‘w’);
fwrite(fid, ‘5’, ‘char’);
fclose(fid);
else
pause(5);
if isfile(stateFile)
fid = fopen(stateFile, ‘r’);
state = fread(fid, ‘*char’)’;
fclose(fid);
% Check if the state value matches
if strcmp(state, ‘5’)
disp(‘hello’);
end
end
end
endI am trying to achieve parallel exectution of two functions that would normally need two separate matlab(r2023a) windows open in order to successfuly execute. The PULM() function is a MEX funtion and DMD_Funtion is a matlab function that uses a library (‘alp4395’). because of this, a threadpool does not work because ‘Use of MEX functions is not supported on a thread-based worker.’ The reason either a parallel processing function or 2 MATLAB windows are needed is because PULM() needs to initialize into its ready state then it waits for a trigger (meaning matlab will stay ‘Busy’ and wont execute any other commands until PULM is finished, which waits indefinitely for a trigger), which is the DMD_Function(), then finishes the rest of the PULM MEX functions to collect data and exit.
I have been trying to use parpool(‘Processes’) instead, however it seems that it is unable to successfully ‘exit gracefully’ from the C code, probably due to timing issues with the trigger. PULM() needs several seconds to be in its ‘Ready’ state before the DMD_Funtion() is ran or else the PULM() will be waiting for triggers and basically never exit. I noticed that even with the Pause(5) or even 10 that I put in before the the DMD funtion is ran, all that happens is that both workers wait 5 seconds before running simultaneously instead of being delayed like they are supposed to. How do I delay the exectution of the DMD funtion? is it possible that i = 3 is running before i = 2 causing both of interations to pause before executing? Are there any other ways I could accomplish parallel processing in this way without the use of 2 MATLAB windows?
Initially I thought using 2 push buttons on a GUI would work because I believed that push buttons worked in parallel, but I soon realized they were executed sequentially. So I now have to use parallel toolbox functions so that one push button with execute everything in parallel.
Here’s the code for the parfor:
parfor i=2:3
if i==2

%pause(1);
%DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber=768/SamplingRate) 768/32
PULM(PonitNumber,NumberofRecording,AvergeNumber);
%disp(‘run 1’);
disp(‘done 1’)

else
pause(5);
DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber);

disp(‘done 2’)

end

end

Note: ‘done 1’ does not display meaning it does not complete the MEX function but ‘All records were saved to file’ does display which is right before ‘Exit Gracefully’ for the Digitizer.
In a separate code I tried to why the pause was just making them both wait 5 seconds then simultaneously running instead of being delayed. Threadpools seem to do what I want, it executes i==2 and delays i == 3. I am still not sure as to why Processespools doesn’t do the same thing. I even tried to stop the execution of the i==3 line by having it check if i == 2 wrote in a file, but it just ccomes up with an error. this is the reason why I was wondering if i==3 is being executed faster than i==2.
stateFile = ‘state.txt’;
parfor i = 2:3
if i == 2
%pause(5);
disp(‘hi’)

fid = fopen(stateFile, ‘w’);
fwrite(fid, ‘5’, ‘char’);
fclose(fid);
else
pause(5);
if isfile(stateFile)
fid = fopen(stateFile, ‘r’);
state = fread(fid, ‘*char’)’;
fclose(fid);
% Check if the state value matches
if strcmp(state, ‘5’)
disp(‘hello’);
end
end
end
end I am trying to achieve parallel exectution of two functions that would normally need two separate matlab(r2023a) windows open in order to successfuly execute. The PULM() function is a MEX funtion and DMD_Funtion is a matlab function that uses a library (‘alp4395’). because of this, a threadpool does not work because ‘Use of MEX functions is not supported on a thread-based worker.’ The reason either a parallel processing function or 2 MATLAB windows are needed is because PULM() needs to initialize into its ready state then it waits for a trigger (meaning matlab will stay ‘Busy’ and wont execute any other commands until PULM is finished, which waits indefinitely for a trigger), which is the DMD_Function(), then finishes the rest of the PULM MEX functions to collect data and exit.
I have been trying to use parpool(‘Processes’) instead, however it seems that it is unable to successfully ‘exit gracefully’ from the C code, probably due to timing issues with the trigger. PULM() needs several seconds to be in its ‘Ready’ state before the DMD_Funtion() is ran or else the PULM() will be waiting for triggers and basically never exit. I noticed that even with the Pause(5) or even 10 that I put in before the the DMD funtion is ran, all that happens is that both workers wait 5 seconds before running simultaneously instead of being delayed like they are supposed to. How do I delay the exectution of the DMD funtion? is it possible that i = 3 is running before i = 2 causing both of interations to pause before executing? Are there any other ways I could accomplish parallel processing in this way without the use of 2 MATLAB windows?
Initially I thought using 2 push buttons on a GUI would work because I believed that push buttons worked in parallel, but I soon realized they were executed sequentially. So I now have to use parallel toolbox functions so that one push button with execute everything in parallel.
Here’s the code for the parfor:
parfor i=2:3
if i==2

%pause(1);
%DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber=768/SamplingRate) 768/32
PULM(PonitNumber,NumberofRecording,AvergeNumber);
%disp(‘run 1’);
disp(‘done 1’)

else
pause(5);
DMD_Function(patternNumber,AvergeNumber,SamplingRate,BinningNumber);

disp(‘done 2’)

end

end

Note: ‘done 1’ does not display meaning it does not complete the MEX function but ‘All records were saved to file’ does display which is right before ‘Exit Gracefully’ for the Digitizer.
In a separate code I tried to why the pause was just making them both wait 5 seconds then simultaneously running instead of being delayed. Threadpools seem to do what I want, it executes i==2 and delays i == 3. I am still not sure as to why Processespools doesn’t do the same thing. I even tried to stop the execution of the i==3 line by having it check if i == 2 wrote in a file, but it just ccomes up with an error. this is the reason why I was wondering if i==3 is being executed faster than i==2.
stateFile = ‘state.txt’;
parfor i = 2:3
if i == 2
%pause(5);
disp(‘hi’)

fid = fopen(stateFile, ‘w’);
fwrite(fid, ‘5’, ‘char’);
fclose(fid);
else
pause(5);
if isfile(stateFile)
fid = fopen(stateFile, ‘r’);
state = fread(fid, ‘*char’)’;
fclose(fid);
% Check if the state value matches
if strcmp(state, ‘5’)
disp(‘hello’);
end
end
end
end parallel computing, parallel computing toolbox, parfor, data acquisition, digitizer, help, dmd, parallel pools MATLAB Answers — New Questions

​

[k,Rsdnrm,Rsd,ExFlg,OptmInfo,Lmda,Jmat] = lsqcurvefit(@simulatedhs,k0,tforward,[Hdata,HSdata],lb,ub);
CI = nlparci(k,Rsd,’jacobian’,Jmat);[k,Rsdnrm,Rsd,ExFlg,OptmInfo,Lmda,Jmat] = lsqcurvefit(@simulatedhs,k0,tforward,[Hdata,HSdata],lb,ub);
CI = nlparci(k,Rsd,’jacobian’,Jmat); [k,Rsdnrm,Rsd,ExFlg,OptmInfo,Lmda,Jmat] = lsqcurvefit(@simulatedhs,k0,tforward,[Hdata,HSdata],lb,ub);
CI = nlparci(k,Rsd,’jacobian’,Jmat); curve fitting, parameter estimation, statistics information, confidence region MATLAB Answers — New Questions

​

I made a standalone app using matlab app designer. While making package, the default installation folder for package is showing as ProgramFiles or AppData. But I want to run from the local folder only where the app is located in the User PC. Please suggest the way for doing this.I made a standalone app using matlab app designer. While making package, the default installation folder for package is showing as ProgramFiles or AppData. But I want to run from the local folder only where the app is located in the User PC. Please suggest the way for doing this. I made a standalone app using matlab app designer. While making package, the default installation folder for package is showing as ProgramFiles or AppData. But I want to run from the local folder only where the app is located in the User PC. Please suggest the way for doing this. standalone application MATLAB Answers — New Questions

​

Hi all,
How do I execute an OutputFcn function in each iteration inside fitlm? I have tried to run the following code but it does not print anything or throw an exception.

load carbig
tbl = table(Horsepower,Weight,MPG);
modelfun = @(b,x)b(1) + b(2)*x(:,1).^b(3) + …
b(4)*x(:,2).^b(5);

beta0 = [-50 500 -1 500 -1];
opts = statset("fitnlm");
opts.OutputFcn = @(x)disp(x);
mdl = fitnlm(tbl,modelfun,beta0,"Options",opts);Hi all,
How do I execute an OutputFcn function in each iteration inside fitlm? I have tried to run the following code but it does not print anything or throw an exception.

load carbig
tbl = table(Horsepower,Weight,MPG);
modelfun = @(b,x)b(1) + b(2)*x(:,1).^b(3) + …
b(4)*x(:,2).^b(5);

beta0 = [-50 500 -1 500 -1];
opts = statset("fitnlm");
opts.OutputFcn = @(x)disp(x);
mdl = fitnlm(tbl,modelfun,beta0,"Options",opts); Hi all,
How do I execute an OutputFcn function in each iteration inside fitlm? I have tried to run the following code but it does not print anything or throw an exception.

load carbig
tbl = table(Horsepower,Weight,MPG);
modelfun = @(b,x)b(1) + b(2)*x(:,1).^b(3) + …
b(4)*x(:,2).^b(5);

beta0 = [-50 500 -1 500 -1];
opts = statset("fitnlm");
opts.OutputFcn = @(x)disp(x);
mdl = fitnlm(tbl,modelfun,beta0,"Options",opts); fitnlm, outputfcn, fit nonlinear regression model MATLAB Answers — New Questions

​

Dear firends,
I have a querry reagrding the GUI formation in MATLAB. I have made a GUI and everything is ok but the values of tab inside the listerner called as ‘angle’ can be changed with edit filed and slider, which has limit obj.angle = [-10,10].
During static code given below also I have made the condtion ‘if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10’. Hence the static code is not executed if the slider and editfield is out of range of given limit.
But the problem is if I go inside the angle.Value and write some number not in range or limit of angle then even though the static code is not excuted but the value inside angle.Value is updated and stored. I dont want this.
Hence, I request to please suggest some way by which I can prevent the value from being updated manually inside the angle.Value. And the angle.Value should have the same limit as it has when input is given through slider or edit field.

I request to please help.
Thanking all,
Kind regards

classdef classErowin < handle
properties
fig
serial_port
UI
angle
end

properties (SetObservable, AbortSet) % for listeners
angle
end

methods
function obj = class() % constructor
obj.angle = [-10,10]
edit_filed
slider
end
end

methods (Static)
function handlePropEvents(src,evnt)
obj = evnt.AffectedObject;
switch src.Name
case {‘angle’}
if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10
end
end
end
end
endDear firends,
I have a querry reagrding the GUI formation in MATLAB. I have made a GUI and everything is ok but the values of tab inside the listerner called as ‘angle’ can be changed with edit filed and slider, which has limit obj.angle = [-10,10].
During static code given below also I have made the condtion ‘if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10’. Hence the static code is not executed if the slider and editfield is out of range of given limit.
But the problem is if I go inside the angle.Value and write some number not in range or limit of angle then even though the static code is not excuted but the value inside angle.Value is updated and stored. I dont want this.
Hence, I request to please suggest some way by which I can prevent the value from being updated manually inside the angle.Value. And the angle.Value should have the same limit as it has when input is given through slider or edit field.

I request to please help.
Thanking all,
Kind regards

classdef classErowin < handle
properties
fig
serial_port
UI
angle
end

properties (SetObservable, AbortSet) % for listeners
angle
end

methods
function obj = class() % constructor
obj.angle = [-10,10]
edit_filed
slider
end
end

methods (Static)
function handlePropEvents(src,evnt)
obj = evnt.AffectedObject;
switch src.Name
case {‘angle’}
if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10
end
end
end
end
end Dear firends,
I have a querry reagrding the GUI formation in MATLAB. I have made a GUI and everything is ok but the values of tab inside the listerner called as ‘angle’ can be changed with edit filed and slider, which has limit obj.angle = [-10,10].
During static code given below also I have made the condtion ‘if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10’. Hence the static code is not executed if the slider and editfield is out of range of given limit.
But the problem is if I go inside the angle.Value and write some number not in range or limit of angle then even though the static code is not excuted but the value inside angle.Value is updated and stored. I dont want this.
Hence, I request to please suggest some way by which I can prevent the value from being updated manually inside the angle.Value. And the angle.Value should have the same limit as it has when input is given through slider or edit field.

I request to please help.
Thanking all,
Kind regards

classdef classErowin < handle
properties
fig
serial_port
UI
angle
end

properties (SetObservable, AbortSet) % for listeners
angle
end

methods
function obj = class() % constructor
obj.angle = [-10,10]
edit_filed
slider
end
end

methods (Static)
function handlePropEvents(src,evnt)
obj = evnt.AffectedObject;
switch src.Name
case {‘angle’}
if (obj.angle ~= obj.angle) & obj.angle<10 & obj.angle>-10
end
end
end
end
end gui, matlab gui MATLAB Answers — New Questions

​