Category: Matlab
Category Archives: Matlab
Combining datasets using Geo data/ How to retain data values using ‘imfuse’
Hi,
I am trying to imfuse these two datasets Data1 & Data2 (data type Double) with R1 and R2 (R1 and R2 are spatial coordinates data & pixel sizes etc.). However, the end product ‘AB’ is changing the data type to uint 8, and this change of data type is also affecting the values in dataset (changed). I have checked the documentation but the output of ‘Imfuse’ is ‘uint 8’.
I need some advise, How can I embed these two datasets using geo data, which dont alter its data values. If there is some other function or technique to do it. Kindly advise.
AB=imfuse(data2,R2,data1,R1,’blend’,’Scaling’,’joint’);
figure;
imshow(AB);
I have attached the files.Hi,
I am trying to imfuse these two datasets Data1 & Data2 (data type Double) with R1 and R2 (R1 and R2 are spatial coordinates data & pixel sizes etc.). However, the end product ‘AB’ is changing the data type to uint 8, and this change of data type is also affecting the values in dataset (changed). I have checked the documentation but the output of ‘Imfuse’ is ‘uint 8’.
I need some advise, How can I embed these two datasets using geo data, which dont alter its data values. If there is some other function or technique to do it. Kindly advise.
AB=imfuse(data2,R2,data1,R1,’blend’,’Scaling’,’joint’);
figure;
imshow(AB);
I have attached the files. Hi,
I am trying to imfuse these two datasets Data1 & Data2 (data type Double) with R1 and R2 (R1 and R2 are spatial coordinates data & pixel sizes etc.). However, the end product ‘AB’ is changing the data type to uint 8, and this change of data type is also affecting the values in dataset (changed). I have checked the documentation but the output of ‘Imfuse’ is ‘uint 8’.
I need some advise, How can I embed these two datasets using geo data, which dont alter its data values. If there is some other function or technique to do it. Kindly advise.
AB=imfuse(data2,R2,data1,R1,’blend’,’Scaling’,’joint’);
figure;
imshow(AB);
I have attached the files. image processing, digital image processing, data MATLAB Answers — New Questions
Speeding up numerical gradient of tensor with FFTs
I have a gradient problem that involves the following function: adding a phase to each column in a matrix and computing the FFT of each column, and aggregating all FFTs into a new matrix.
My brute-force numerical gradient is adding a small phase to each column, iteratively, and then computing the loss by comparing it with some known matrix. currX is the current guess of phases, Ts2pHH is the matrix to whose columns these phases are added, and the function is computing by taking a sum along 2 dimensions of the intensity and then adding it up.
I want to know if this can be done more efficiently, because for my matrix size (~1000×1000) this takes around 2 minutes, which is very slow.
My code is shown below:
for k = 1:length(currX)
currX_perturbed = currX;
currX_perturbed(k) = currX_perturbed(k) + epsilon;
phases_perturbed = exp(1i * [0, currX_perturbed]);
Tcorr_perturbed = Ts2pHH .* phases_perturbed;
TcorrFFT_perturbed = fftshift(fft(fft(fft(fft(reshape(Tcorr_perturbed, [Npx, Npx, Nin, Nin]), [], 3), [], 4), [], 1), [], 2));
inputFreq_perturbed = squeeze(sum(sum(abs(TcorrFFT_perturbed).^2, 1), 2));
gradient(k) = gradient(k) + (-sum(inputFreq_perturbed .* support, ‘all’) – loss) / epsilon;
endI have a gradient problem that involves the following function: adding a phase to each column in a matrix and computing the FFT of each column, and aggregating all FFTs into a new matrix.
My brute-force numerical gradient is adding a small phase to each column, iteratively, and then computing the loss by comparing it with some known matrix. currX is the current guess of phases, Ts2pHH is the matrix to whose columns these phases are added, and the function is computing by taking a sum along 2 dimensions of the intensity and then adding it up.
I want to know if this can be done more efficiently, because for my matrix size (~1000×1000) this takes around 2 minutes, which is very slow.
My code is shown below:
for k = 1:length(currX)
currX_perturbed = currX;
currX_perturbed(k) = currX_perturbed(k) + epsilon;
phases_perturbed = exp(1i * [0, currX_perturbed]);
Tcorr_perturbed = Ts2pHH .* phases_perturbed;
TcorrFFT_perturbed = fftshift(fft(fft(fft(fft(reshape(Tcorr_perturbed, [Npx, Npx, Nin, Nin]), [], 3), [], 4), [], 1), [], 2));
inputFreq_perturbed = squeeze(sum(sum(abs(TcorrFFT_perturbed).^2, 1), 2));
gradient(k) = gradient(k) + (-sum(inputFreq_perturbed .* support, ‘all’) – loss) / epsilon;
end I have a gradient problem that involves the following function: adding a phase to each column in a matrix and computing the FFT of each column, and aggregating all FFTs into a new matrix.
My brute-force numerical gradient is adding a small phase to each column, iteratively, and then computing the loss by comparing it with some known matrix. currX is the current guess of phases, Ts2pHH is the matrix to whose columns these phases are added, and the function is computing by taking a sum along 2 dimensions of the intensity and then adding it up.
I want to know if this can be done more efficiently, because for my matrix size (~1000×1000) this takes around 2 minutes, which is very slow.
My code is shown below:
for k = 1:length(currX)
currX_perturbed = currX;
currX_perturbed(k) = currX_perturbed(k) + epsilon;
phases_perturbed = exp(1i * [0, currX_perturbed]);
Tcorr_perturbed = Ts2pHH .* phases_perturbed;
TcorrFFT_perturbed = fftshift(fft(fft(fft(fft(reshape(Tcorr_perturbed, [Npx, Npx, Nin, Nin]), [], 3), [], 4), [], 1), [], 2));
inputFreq_perturbed = squeeze(sum(sum(abs(TcorrFFT_perturbed).^2, 1), 2));
gradient(k) = gradient(k) + (-sum(inputFreq_perturbed .* support, ‘all’) – loss) / epsilon;
end gradient, optimization, speed, fft, for loop, matrix, loop, iteration MATLAB Answers — New Questions
Feature Fusion code to fuse two feature space
Anyone, can you share the code for Attentional Feature Fusion (AFF) and iterative AFF.?Anyone, can you share the code for Attentional Feature Fusion (AFF) and iterative AFF.? Anyone, can you share the code for Attentional Feature Fusion (AFF) and iterative AFF.? feature fusion MATLAB Answers — New Questions
Hi i created a matfile of hourly temperature 334*334*2928 . how i can convert the .mat file to Tif file ?
attached the screen shotattached the screen shot attached the screen shot #matfile conversion #tifformat MATLAB Answers — New Questions
Assenza comando Estimate in estimate transfer function
Post Content Post Content system identification, estimate transfer function MATLAB Answers — New Questions
Extract data from fileDatastore and cell
read(fds)
ans =
struct with fields:
data: {178093×3 cell}
Cell data is somthing like that
{1×1×9 double} {10×20×3 single} {[0.4343]}
How can extract all rows and but 1 and 3 number columns such as only {1×1×9 double} {[0.4343]} using fds.data ?read(fds)
ans =
struct with fields:
data: {178093×3 cell}
Cell data is somthing like that
{1×1×9 double} {10×20×3 single} {[0.4343]}
How can extract all rows and but 1 and 3 number columns such as only {1×1×9 double} {[0.4343]} using fds.data ? read(fds)
ans =
struct with fields:
data: {178093×3 cell}
Cell data is somthing like that
{1×1×9 double} {10×20×3 single} {[0.4343]}
How can extract all rows and but 1 and 3 number columns such as only {1×1×9 double} {[0.4343]} using fds.data ? filedatastore, cell MATLAB Answers — New Questions
why do I get the error ”Attempt to execute SCRIPT edge as a function:”?
I want to edge a gray scale image and I receive this error: ”Attempt to execute SCRIPT edge as a function:” can any one help me?I want to edge a gray scale image and I receive this error: ”Attempt to execute SCRIPT edge as a function:” can any one help me? I want to edge a gray scale image and I receive this error: ”Attempt to execute SCRIPT edge as a function:” can any one help me? image processing MATLAB Answers — New Questions
Issue When Update to MATLAB R2024a
When I tried to update to R2024a, I got the popup to agree the license agreement. But I can’t click either "Yes" or "No", neither "Next" or "Cancel" button, like the screen shot attached below. I tried change screen resolution but it doesn’t resolve the issue. Any suggestions on how to solve it?
Many thanks!When I tried to update to R2024a, I got the popup to agree the license agreement. But I can’t click either "Yes" or "No", neither "Next" or "Cancel" button, like the screen shot attached below. I tried change screen resolution but it doesn’t resolve the issue. Any suggestions on how to solve it?
Many thanks! When I tried to update to R2024a, I got the popup to agree the license agreement. But I can’t click either "Yes" or "No", neither "Next" or "Cancel" button, like the screen shot attached below. I tried change screen resolution but it doesn’t resolve the issue. Any suggestions on how to solve it?
Many thanks! r2024a, update MATLAB Answers — New Questions
Error running ‘h2f_175_S2_sil_plant_model’ on target computer: Timed out waiting for External mode connect to complete.
Hello
I am running Fuel cell plant model on speedgoat target machine, while running in getting this single error <Error running ‘h2f_175_S2_sil_plant_model’ on target computer: Timed out waiting for External mode connect to complete.>, while model uploaded to target machine but simulation not starting .
Thanks in advancedHello
I am running Fuel cell plant model on speedgoat target machine, while running in getting this single error <Error running ‘h2f_175_S2_sil_plant_model’ on target computer: Timed out waiting for External mode connect to complete.>, while model uploaded to target machine but simulation not starting .
Thanks in advanced Hello
I am running Fuel cell plant model on speedgoat target machine, while running in getting this single error <Error running ‘h2f_175_S2_sil_plant_model’ on target computer: Timed out waiting for External mode connect to complete.>, while model uploaded to target machine but simulation not starting .
Thanks in advanced thingspeak, realtime, matlab, simulink, targetmachine MATLAB Answers — New Questions
GUIDE code from pre 2015 need to access the button press function and “programatically press the button” from a different m file
Hey All
As the title suggests, I am dealing with a GUIDE file from a long time ago and I need to have it running and while its running I want to be able to access one of the functions called SaveSpectrumPlotButton_Callback() on line 1933
I have not been able to find how to access it from a different file or even create an output that I could maybe access in order to activate that button. I have shared the m file below
Any help would be much appreciated/Hey All
As the title suggests, I am dealing with a GUIDE file from a long time ago and I need to have it running and while its running I want to be able to access one of the functions called SaveSpectrumPlotButton_Callback() on line 1933
I have not been able to find how to access it from a different file or even create an output that I could maybe access in order to activate that button. I have shared the m file below
Any help would be much appreciated/ Hey All
As the title suggests, I am dealing with a GUIDE file from a long time ago and I need to have it running and while its running I want to be able to access one of the functions called SaveSpectrumPlotButton_Callback() on line 1933
I have not been able to find how to access it from a different file or even create an output that I could maybe access in order to activate that button. I have shared the m file below
Any help would be much appreciated/ guide, serial communication, functions MATLAB Answers — New Questions
Can’t I import tdms file in R2023b?
Hello,
I installed R2023b version in my company PC.
I want to import TDMS file in R2023b but it happened error messages.
" Error using untitled
License not found. Data Acquisition Toolbox or Communications Toolbox is required to use TDMS feature."
I found that it can be imported from R2024a.
So, Isn’t there a licence of importing TDMS file in R2023b?
Please let me know.
Thank you.Hello,
I installed R2023b version in my company PC.
I want to import TDMS file in R2023b but it happened error messages.
" Error using untitled
License not found. Data Acquisition Toolbox or Communications Toolbox is required to use TDMS feature."
I found that it can be imported from R2024a.
So, Isn’t there a licence of importing TDMS file in R2023b?
Please let me know.
Thank you. Hello,
I installed R2023b version in my company PC.
I want to import TDMS file in R2023b but it happened error messages.
" Error using untitled
License not found. Data Acquisition Toolbox or Communications Toolbox is required to use TDMS feature."
I found that it can be imported from R2024a.
So, Isn’t there a licence of importing TDMS file in R2023b?
Please let me know.
Thank you. import, tdms file MATLAB Answers — New Questions
Setting bounds for constants in a fit() object in terms of other constants in the fit object
Hello, I am currently trying to fit experimental data that I theorize fits a logarithmic function.
To this end, I am using the fit() and fitoptions() function in order to create a logarithmic equation.
Since the default MATLAB logarithmic fit model does not seem to account for horizontal translation and scaling, I have created a custom fit type as seen below:
shiftedLog = fittype(‘A*log((B*x)-C) + D’, ‘independent’, ‘x’, ‘coefficients’, {‘A’,’B’,’C’,’D’});
% set the bounds
opts.StartPoint = […]; % Initial guesses for [A, B, C, D]
opts.Lower = […]; % Lower bounds for [A, B, C, D]
opts.Upper = […]; % Upper bounds for [A, B, C, D]
I have noticed that when I try to run this program, I have ran into errors where the fit object returns either infinity or a complex value.
Since the log() function is defined only when its inner argument > 0, I need to specify the bounds for variables B and C to keep the entire argument positive.
However, When I try to specify the bounds in terms of the constants of the fit object, for example:
opts.Lower = [-Inf, C/min(x),…]
MATLAB gives me an error.
I know that in the main script code, the constants A, B, C, and D are not standalone variables so the main script has this issue, but as (to my knowledge) fit() finds the best values for the constants through an iterative process. Given this, It is impractical to specify a hard-coded value for the limits.
How should I approach this problem? Is there another way to find fit of a logarithmic function that incorporates ‘shifting’ and ‘stretching’ in both horizontal and vertical directions? Or is there a workaround? Thank you in advance.Hello, I am currently trying to fit experimental data that I theorize fits a logarithmic function.
To this end, I am using the fit() and fitoptions() function in order to create a logarithmic equation.
Since the default MATLAB logarithmic fit model does not seem to account for horizontal translation and scaling, I have created a custom fit type as seen below:
shiftedLog = fittype(‘A*log((B*x)-C) + D’, ‘independent’, ‘x’, ‘coefficients’, {‘A’,’B’,’C’,’D’});
% set the bounds
opts.StartPoint = […]; % Initial guesses for [A, B, C, D]
opts.Lower = […]; % Lower bounds for [A, B, C, D]
opts.Upper = […]; % Upper bounds for [A, B, C, D]
I have noticed that when I try to run this program, I have ran into errors where the fit object returns either infinity or a complex value.
Since the log() function is defined only when its inner argument > 0, I need to specify the bounds for variables B and C to keep the entire argument positive.
However, When I try to specify the bounds in terms of the constants of the fit object, for example:
opts.Lower = [-Inf, C/min(x),…]
MATLAB gives me an error.
I know that in the main script code, the constants A, B, C, and D are not standalone variables so the main script has this issue, but as (to my knowledge) fit() finds the best values for the constants through an iterative process. Given this, It is impractical to specify a hard-coded value for the limits.
How should I approach this problem? Is there another way to find fit of a logarithmic function that incorporates ‘shifting’ and ‘stretching’ in both horizontal and vertical directions? Or is there a workaround? Thank you in advance. Hello, I am currently trying to fit experimental data that I theorize fits a logarithmic function.
To this end, I am using the fit() and fitoptions() function in order to create a logarithmic equation.
Since the default MATLAB logarithmic fit model does not seem to account for horizontal translation and scaling, I have created a custom fit type as seen below:
shiftedLog = fittype(‘A*log((B*x)-C) + D’, ‘independent’, ‘x’, ‘coefficients’, {‘A’,’B’,’C’,’D’});
% set the bounds
opts.StartPoint = […]; % Initial guesses for [A, B, C, D]
opts.Lower = […]; % Lower bounds for [A, B, C, D]
opts.Upper = […]; % Upper bounds for [A, B, C, D]
I have noticed that when I try to run this program, I have ran into errors where the fit object returns either infinity or a complex value.
Since the log() function is defined only when its inner argument > 0, I need to specify the bounds for variables B and C to keep the entire argument positive.
However, When I try to specify the bounds in terms of the constants of the fit object, for example:
opts.Lower = [-Inf, C/min(x),…]
MATLAB gives me an error.
I know that in the main script code, the constants A, B, C, and D are not standalone variables so the main script has this issue, but as (to my knowledge) fit() finds the best values for the constants through an iterative process. Given this, It is impractical to specify a hard-coded value for the limits.
How should I approach this problem? Is there another way to find fit of a logarithmic function that incorporates ‘shifting’ and ‘stretching’ in both horizontal and vertical directions? Or is there a workaround? Thank you in advance. curve fitting, function MATLAB Answers — New Questions
coefficients checked asking for him
I would like to check the coefficients of a quadratic equation as a real number. I would like to establish a vector for an equation ax^2+bx+c–> [a b c] . in case of the variable if you are a character writes zero let the felhaszáló ask for the number again with an error message.How I may make this?I would like to check the coefficients of a quadratic equation as a real number. I would like to establish a vector for an equation ax^2+bx+c–> [a b c] . in case of the variable if you are a character writes zero let the felhaszáló ask for the number again with an error message.How I may make this? I would like to check the coefficients of a quadratic equation as a real number. I would like to establish a vector for an equation ax^2+bx+c–> [a b c] . in case of the variable if you are a character writes zero let the felhaszáló ask for the number again with an error message.How I may make this? basic matlab MATLAB Answers — New Questions
How do I pass a dynamic number of output variables to a function?
Some functions change their behavior dependending on the number of output variables. For example, ndgrid will create N N-Dimensional arrays where N is the number of output variables. I need to pass a number of output variables that depends on other variable (whose value is not previously known). Is it possible to do that? What is the best way to do that?Some functions change their behavior dependending on the number of output variables. For example, ndgrid will create N N-Dimensional arrays where N is the number of output variables. I need to pass a number of output variables that depends on other variable (whose value is not previously known). Is it possible to do that? What is the best way to do that? Some functions change their behavior dependending on the number of output variables. For example, ndgrid will create N N-Dimensional arrays where N is the number of output variables. I need to pass a number of output variables that depends on other variable (whose value is not previously known). Is it possible to do that? What is the best way to do that? output, function MATLAB Answers — New Questions
How to make the font sizes of Xlabel, Ylabel, and Title different in a heat map using MATLAB?
I have used the heatmap function in MATLAB to draw a figure. However, the font sizes of Xlabel, Ylabel, and Ttile are same. How to make the font sizes of Xlabel, Ylabel, and Title different in a heat map?I have used the heatmap function in MATLAB to draw a figure. However, the font sizes of Xlabel, Ylabel, and Ttile are same. How to make the font sizes of Xlabel, Ylabel, and Title different in a heat map? I have used the heatmap function in MATLAB to draw a figure. However, the font sizes of Xlabel, Ylabel, and Ttile are same. How to make the font sizes of Xlabel, Ylabel, and Title different in a heat map? heatmap, fontsize MATLAB Answers — New Questions
How to do skull stripping when the skull in the image is not complete?
How do I remove the skull (as well as others tissues that are not tumor, but have similar intensity) from the MRI images? I have seen methods including removing the largest blob (the skull), but the skull does not enclose the brain fully in the picture I attached here. Using imbinarize will also keep other tissues which have similar intensity as the tumor in the image.
I have tried to use imerode, but the skull is not removed entirely.
Any help is appreciated. Thanks!How do I remove the skull (as well as others tissues that are not tumor, but have similar intensity) from the MRI images? I have seen methods including removing the largest blob (the skull), but the skull does not enclose the brain fully in the picture I attached here. Using imbinarize will also keep other tissues which have similar intensity as the tumor in the image.
I have tried to use imerode, but the skull is not removed entirely.
Any help is appreciated. Thanks! How do I remove the skull (as well as others tissues that are not tumor, but have similar intensity) from the MRI images? I have seen methods including removing the largest blob (the skull), but the skull does not enclose the brain fully in the picture I attached here. Using imbinarize will also keep other tissues which have similar intensity as the tumor in the image.
I have tried to use imerode, but the skull is not removed entirely.
Any help is appreciated. Thanks! brain tumor, image processing MATLAB Answers — New Questions
Create Variable in Simulink block that contains 63 elements.
I have 63 Sine blocks that will have different amplitude values. The values will be set from Matlab workspace. I would like to loop through the data and set the amplitudes values programmatically. However, I only know how to create a constant from the Create Variable option in the Simulink Sine block. How to I create a variable that has 63 elements so I can loop throught my data and assign the data correctly?I have 63 Sine blocks that will have different amplitude values. The values will be set from Matlab workspace. I would like to loop through the data and set the amplitudes values programmatically. However, I only know how to create a constant from the Create Variable option in the Simulink Sine block. How to I create a variable that has 63 elements so I can loop throught my data and assign the data correctly? I have 63 Sine blocks that will have different amplitude values. The values will be set from Matlab workspace. I would like to loop through the data and set the amplitudes values programmatically. However, I only know how to create a constant from the Create Variable option in the Simulink Sine block. How to I create a variable that has 63 elements so I can loop throught my data and assign the data correctly? create variable in simulink MATLAB Answers — New Questions
Can’t click “Roll The Dice!” problem in intro to matlab cody problems therefor cannot earn badge.
I am trying to earn my badge in intro to matlab in the Cody problems. I completed all the problems besides Roll The Dice! which is restraining me from earning the badge. It is simply not letting me click the problem.I am trying to earn my badge in intro to matlab in the Cody problems. I completed all the problems besides Roll The Dice! which is restraining me from earning the badge. It is simply not letting me click the problem. I am trying to earn my badge in intro to matlab in the Cody problems. I completed all the problems besides Roll The Dice! which is restraining me from earning the badge. It is simply not letting me click the problem. dice cody MATLAB Answers — New Questions
Applying logic to Curve Fitter Output
I am trying to use Curve Fitter and generating the code to help teach myself how to process my data without Curve Fitter.
Is there a way to apply a logic that a certain data point should be lower/higher than another certain data point, and have the coefficients adjust accordingly?
%CREATEFIT(TWOSOUSANDTQSPK,TWOSOUSANDTQAPC,TWOSOUSANDTQNM)
% Create a fit.
%
% Data for ‘2000 copy 1’ fit:
% X Input: twosousandTQSPK
% Y Input: twosousandTQAPC
% Z Output: twosousandTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:43:50
%% Fit: ‘2000 copy 1’.
[xData, yData, zData] = prepareSurfaceData( twosousandTQSPK, twosousandTQAPC, twosousandTQnm );
% Set up fittype and options.
ft = fittype( ‘A+(x*B)+(C*x*x)+(y*x*D)+(y*x*x*E)+(y*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0526769976807926 0.737858095516997 0.269119426398556 0.422835615008808 0.547870901214845 0.942736984276934];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘2000 copy 1’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘2000 copy 1’, ‘twosousandTQnm vs. twosousandTQSPK, twosousandTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘twosousandTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘twosousandTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘twosousandTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -2.9, 15.3 );
I am looking to apply that the output data should follow the ‘twosousandTQSPK’ axis relative. I reserached the weighting function, but I I don’t know how I could accurately match the data inputs I have to weight it.
This is an example of what I am expecting with a different set of variables, but the results above in question should resemble this outcome to some degree.
%CREATEFIT(SIXTEENTQSPK,SIXTEENTQAPC,SIXTEENTQNM)
% Create a fit.
%
% Data for ‘1600 copy 2’ fit:
% X Input: sixteenTQSPK
% Y Input: sixteenTQAPC
% Z Output: sixteenTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:55:15
%% Fit: ‘1600 copy 2’.
[xData, yData, zData] = prepareSurfaceData( sixteenTQSPK, sixteenTQAPC, sixteenTQnm );
% Set up fittype and options.
ft = fittype( ‘(y*A)+B+(x*C)+(D*x*x)+(y*x*E)+(y*x*x*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0430238016578078 0.168990029462704 0.649115474956452 0.73172238565867 0.647745963136307 0.450923706430945];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘1600 copy 2’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘1600 copy 2’, ‘sixteenTQnm vs. sixteenTQSPK, sixteenTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘sixteenTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘sixteenTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘sixteenTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -0.5, -13.0 );I am trying to use Curve Fitter and generating the code to help teach myself how to process my data without Curve Fitter.
Is there a way to apply a logic that a certain data point should be lower/higher than another certain data point, and have the coefficients adjust accordingly?
%CREATEFIT(TWOSOUSANDTQSPK,TWOSOUSANDTQAPC,TWOSOUSANDTQNM)
% Create a fit.
%
% Data for ‘2000 copy 1’ fit:
% X Input: twosousandTQSPK
% Y Input: twosousandTQAPC
% Z Output: twosousandTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:43:50
%% Fit: ‘2000 copy 1’.
[xData, yData, zData] = prepareSurfaceData( twosousandTQSPK, twosousandTQAPC, twosousandTQnm );
% Set up fittype and options.
ft = fittype( ‘A+(x*B)+(C*x*x)+(y*x*D)+(y*x*x*E)+(y*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0526769976807926 0.737858095516997 0.269119426398556 0.422835615008808 0.547870901214845 0.942736984276934];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘2000 copy 1’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘2000 copy 1’, ‘twosousandTQnm vs. twosousandTQSPK, twosousandTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘twosousandTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘twosousandTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘twosousandTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -2.9, 15.3 );
I am looking to apply that the output data should follow the ‘twosousandTQSPK’ axis relative. I reserached the weighting function, but I I don’t know how I could accurately match the data inputs I have to weight it.
This is an example of what I am expecting with a different set of variables, but the results above in question should resemble this outcome to some degree.
%CREATEFIT(SIXTEENTQSPK,SIXTEENTQAPC,SIXTEENTQNM)
% Create a fit.
%
% Data for ‘1600 copy 2’ fit:
% X Input: sixteenTQSPK
% Y Input: sixteenTQAPC
% Z Output: sixteenTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:55:15
%% Fit: ‘1600 copy 2’.
[xData, yData, zData] = prepareSurfaceData( sixteenTQSPK, sixteenTQAPC, sixteenTQnm );
% Set up fittype and options.
ft = fittype( ‘(y*A)+B+(x*C)+(D*x*x)+(y*x*E)+(y*x*x*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0430238016578078 0.168990029462704 0.649115474956452 0.73172238565867 0.647745963136307 0.450923706430945];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘1600 copy 2’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘1600 copy 2’, ‘sixteenTQnm vs. sixteenTQSPK, sixteenTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘sixteenTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘sixteenTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘sixteenTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -0.5, -13.0 ); I am trying to use Curve Fitter and generating the code to help teach myself how to process my data without Curve Fitter.
Is there a way to apply a logic that a certain data point should be lower/higher than another certain data point, and have the coefficients adjust accordingly?
%CREATEFIT(TWOSOUSANDTQSPK,TWOSOUSANDTQAPC,TWOSOUSANDTQNM)
% Create a fit.
%
% Data for ‘2000 copy 1’ fit:
% X Input: twosousandTQSPK
% Y Input: twosousandTQAPC
% Z Output: twosousandTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:43:50
%% Fit: ‘2000 copy 1’.
[xData, yData, zData] = prepareSurfaceData( twosousandTQSPK, twosousandTQAPC, twosousandTQnm );
% Set up fittype and options.
ft = fittype( ‘A+(x*B)+(C*x*x)+(y*x*D)+(y*x*x*E)+(y*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0526769976807926 0.737858095516997 0.269119426398556 0.422835615008808 0.547870901214845 0.942736984276934];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘2000 copy 1’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘2000 copy 1’, ‘twosousandTQnm vs. twosousandTQSPK, twosousandTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘twosousandTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘twosousandTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘twosousandTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -2.9, 15.3 );
I am looking to apply that the output data should follow the ‘twosousandTQSPK’ axis relative. I reserached the weighting function, but I I don’t know how I could accurately match the data inputs I have to weight it.
This is an example of what I am expecting with a different set of variables, but the results above in question should resemble this outcome to some degree.
%CREATEFIT(SIXTEENTQSPK,SIXTEENTQAPC,SIXTEENTQNM)
% Create a fit.
%
% Data for ‘1600 copy 2’ fit:
% X Input: sixteenTQSPK
% Y Input: sixteenTQAPC
% Z Output: sixteenTQnm
% Output:
% fitresult : a fit object representing the fit.
% gof : structure with goodness-of fit info.
%
% See also FIT, CFIT, SFIT.
% Auto-generated by MATLAB on 18-Jul-2024 20:55:15
%% Fit: ‘1600 copy 2’.
[xData, yData, zData] = prepareSurfaceData( sixteenTQSPK, sixteenTQAPC, sixteenTQnm );
% Set up fittype and options.
ft = fittype( ‘(y*A)+B+(x*C)+(D*x*x)+(y*x*E)+(y*x*x*F)’, ‘independent’, {‘x’, ‘y’}, ‘dependent’, ‘z’ );
opts = fitoptions( ‘Method’, ‘NonlinearLeastSquares’ );
opts.Display = ‘Off’;
opts.MaxFunEvals = 60000;
opts.MaxIter = 40000;
opts.StartPoint = [0.0430238016578078 0.168990029462704 0.649115474956452 0.73172238565867 0.647745963136307 0.450923706430945];
opts.TolFun = 0.1;
opts.TolX = 0.1;
% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );
% Plot fit with data.
figure( ‘Name’, ‘1600 copy 2’ );
h = plot( fitresult, [xData, yData], zData );
legend( h, ‘1600 copy 2’, ‘sixteenTQnm vs. sixteenTQSPK, sixteenTQAPC’, ‘Location’, ‘NorthEast’, ‘Interpreter’, ‘none’ );
% Label axes
xlabel( ‘sixteenTQSPK’, ‘Interpreter’, ‘none’ );
ylabel( ‘sixteenTQAPC’, ‘Interpreter’, ‘none’ );
zlabel( ‘sixteenTQnm’, ‘Interpreter’, ‘none’ );
grid off
view( -0.5, -13.0 ); curve fitting, curve fitter, boudaries, weighting MATLAB Answers — New Questions
Is it possible to Merge points from two accounts for same user ?
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Suppose if a user has multiple Mathworks accounts and wants to merge both accounts. If yes, how does it work?
Is it also possible to merge answers reputation points obtained from two different Mathworks account for same user ?
Regards ,
VBBVHello ,
Suppose if a user has multiple Mathworks accounts and wants to merge both accounts. If yes, how does it work?
Is it also possible to merge answers reputation points obtained from two different Mathworks account for same user ?
Regards ,
VBBV Hello ,
Suppose if a user has multiple Mathworks accounts and wants to merge both accounts. If yes, how does it work?
Is it also possible to merge answers reputation points obtained from two different Mathworks account for same user ?
Regards ,
VBBV merge, accounts, answers, points MATLAB Answers — New Questions
