Answered
Why am I keep getting "Unrecognized function or variable 'title'. " and "Variable might be used before it is defined" for dynamic title in app designer
Very likely, at some later point in the code you have an assignment to title . MATLAB "looks forward" and sees the eventual assi...

1 year ago | 1

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Answered
"undefined function or variable" errors when using "readgeotable" and "georasterinfo"
readgeotable() did not exist in R2019a; it was introduced in R2021a.

1 year ago | 2

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Is it possible to create script hooks which are run when entering a given folder?
You would have to define your own cd.m that used builtin('cd') first and then detected whether you were in one of the target dir...

1 year ago | 1

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Answered
How to assign values to an array with broadcasting
xi1 = x1(index_i); xi2 = x2(index_i); xj1 = x1(index_j); xj2 = x2(index_j); You access x1 and x2 at two di...

1 year ago | 0

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matlab 6.5
Arrays in MATLAB 6.5 used to be the same as arrays in current versions of MATLAB. However, as best I recall, "handle" objects we...

1 year ago | 0

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Error using VideoWriter/writeVideo (line 344) Frame must be 2560 by 1360 - Help
A = getframe(figure(1)); The exact size of the frame returned by getframe() can vary a little. In particular, it can vary acco...

1 year ago | 0

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Why does scatter now return an error
Please show the result of which -all height which -all width You would encounter the RGB error if either height or width are ...

1 year ago | 2

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Answered
How do I write to an excel file (xlsx or csv) that is on a shared network drive if another user has it open
The fact that you are using activeX tells us that you are using Windows. The Windows open-file system call accepts a parameter ...

1 year ago | 0

Answered
Put a single legend on a 2D vector plot
figure; L1 = plot(rayon_vect_x, rayon_vect_y,'r--', 'DisplayName','Incident ray'); hold on L2 = plot(rayon_ref_X.', rayon_ref...

1 year ago | 0

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Answered
What is the difference between these two commands?
s = size(A) That is a function call with one output. The size() function is defined as first checking the number of outputs, an...

1 year ago | 1

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Answered
how to get global optimum with Multistart?
tdata = specific_data(:, 1); Hdata = specific_data(:, 2); HSdata = specific_data(:, 3); tdata is an 11 x 1 column vector fo...

1 year ago | 0

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Answered
I want when index increase no. of layers should give inf or button disable to not accept more inputs,thanks
for i=1:L if i > L app.Button.Enable = off; app.firstValEditField.Value= inf; end When you have...

1 year ago | 0

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Answered
What is the equivalent most efficient way to tail -n 1 file.csv in matlab
There are a few cases: If there is a maximum line length that the final line is certain not to exceed, and the characters are r...

1 year ago | 1

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Answered
How do I keep the target for a specific time period?
You need a different approach. You do not want to pause(0.5) -- you want to wait up to 0.5 for a key press and stop waiting as ...

1 year ago | 0

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which toolbox do I need to run openExample('px4/ActuatorControlUAVCANDroneCANExample','supportingFile','px4ActuatorWrite')?
That example appears to be new as of R2024b.

1 year ago | 2

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Assign a colormap to a geoglobe plot
Any one geoplot3() call results in a single line of constant color. There is no way to have the single line be multiple colors o...

1 year ago | 1

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Answered
Canonical Correlation Analysis, reversiblity
It is expected that the results would differ slightly, due to different order of operations. Internally, the code computes two ...

1 year ago | 0

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Answered
como puedo llamar correctamente las variables en un script que proviene de una función
You have for caso = casos for variacion = variaciones so your code does all of the cases for all of the variations in tur...

1 year ago | 0

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Making a video for 1000 time-steps
writerObj = VideoWriter('OutputFileNameGoesHere.avi'); ax = gca; oldsize = [0 0]; for timestep = 1 : 1000 %do approp...

1 year ago | 1

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Answered
Error writing to SQL Server table
ForecastedData = ['SPX' datetime("today") 1 2 3 4 5 6 7 8 9 10] The [] operation is "syntactic sugar" for horzcat or vertcat ca...

1 year ago | 0

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Global variables are inefficient and. make errors difficult to diagnose
The message is a warning, not an error message. You are getting the warning message because using global variables is the most ...

1 year ago | 1

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Error using Deep Learning model LSTM
https://www.mathworks.com/help/deeplearning/ref/trainnetwork.html#mw_36a68d96-8505-4b8d-b338-44e1efa9cc5e defines for the sequen...

1 year ago | 0

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Quiver not working and seemingly wrecking plots.
figure(1) quiver(X,Z,Xdot,Zdot) subplot(2,4,i) By default, quiver() uses the current axes to plot in. The first iteration, f...

1 year ago | 1

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Answered
MATLAB code runs but it throws error once compiled.
legendreP is part of the Symbolic toolbox. Nothing in the Symbolic toolbox can be compiled.

1 year ago | 0

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logical index issue in for lloop
syms x t real mu=(1/16)^4 m=(cos(x)+1i*sin(x))/(1+((1/mu)^4-1)*(cos(4*t)+1i*sin(4*t))); n=real(m) disp(char(n)) So n is a s...

1 year ago | 0

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Receiving "too many output arguments" error in this code
You define function highpassButtonPushed(app, event) which declares highpassButtoPushed as a function that returns no outputs....

1 year ago | 0

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Answered
Help with the convertion of text files into tables.
directory_files_are_in = '/path/to/where/the/files/are'; dinfo = dir( fullfile(directory_files_are_in, '*.txt')); %adjust .tx...

1 year ago | 0

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Error in data formatting when creating a matrix of only certain columns from a very large txt file in MATLAB
You are examining the outputs by using disp() (or implied disp(), such as just naming the variable on the command line.) The de...

1 year ago | 0

Answered
Integrating discrete accelerometer data, displacement result too big
Observe: y = randn(1,10) cumtrapz(y) Notice that the first output is 0. This is a property of cumtrapz(). cumtrapz() is not t...

1 year ago | 0

Answered
Complex variable substitution using Symbolic Toolbox no working as expected.
s = 1i*w; % Substitute s = j*w h_s = simplify(subs(h_w, w*1i, s)); You are asking to substitute 1i*w for w*1i . However, expre...

1 year ago | 0