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Stephen Cobeldick


5.792 total contributions since 2014

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Answered
How to create new file in another folder?
" But I have create the new file in another folder . How can I do this?" All MATLAB functions that read/write to data files acc...

32 minuten ago | 0

Answered
how to load a variable in a loop
D = dir('CC*/Rest/ROI_epi.mat'); for k = 1:numel(D) F = fullfile(D(k).folder,D(k).name); S = load(F); ROI = S.RO...

ongeveer 5 uur ago | 0

Answered
Why use x=load('myFile.mat')?
From the discussion following this answer: "why should people never ever load mat files into the workspace?" Because load-ing ...

ongeveer 6 uur ago | 1

Answered
Increasing number of points in a plot without ruining the shape
Try using method spline or pchip and see if they do what you want: interp1(...,'pchip') https://www.mathworks.com/help/matlab/...

ongeveer 6 uur ago | 0

Answered
Testing if an input is numeric or character
if isnan(Sbase_gerador) ... end

ongeveer 14 uur ago | 0

Answered
how to call different functions of a matlab file to another matlab file
Local functions are only visible to other functions within the same M-file: https://www.mathworks.com/help/matlab/matlab_prog/l...

2 dagen ago | 0

Answered
saving for loop results not working
"Can anyone please explain to me what im doing wrong and how to fix it." Your first code does not store/allocate/sum the output...

2 dagen ago | 0

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lsqcurvefit Error using /
Replacing both of the mrdivide operators with rdivide operators gets rid of the error: >> fun = @(x,xd) (x(1)*(1+(sqrt(1+xd./x(...

2 dagen ago | 0

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Answered
Find mean of rows containing decimal numbers in between integers in a column
>> Y = [1,0.098,0.00076,0.01,2,0.099,0.007,2,0.003,0.04,0.1,4]; >> X = cumsum([1;diff(~mod(Y(:),1))]~=0); >> Z = accumarray(X(...

2 dagen ago | 4

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How to set constraints of griddata results are all non-negative?
"Is there any way to control the range of interpolation results?" You could simply adjust the output data yourself: A = max(0,...

2 dagen ago | 0

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Answered
fopen does not work when put text code
You are adding extra single quotes, here: lgttext = (".lgt'"); % ^ superfluous Roriginaltitle = insertBefore(sp...

3 dagen ago | 3

Answered
How do I change a function name within a loop using variables?
You can store function handles in a cell array and use indexing: >> C = {@(x)2*x+3,@(x)sqrt(x)+1}; % {1st fun,2nd fun} >> C{1}...

3 dagen ago | 2

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Answered
How to split an array by same length and make a matrix?
>> a = 1:72; >> b = reshape(a,24,[]).' b = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

3 dagen ago | 1

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Answered
Having trouble changing mouse cursor to "watch" to indicate that function is busy.
This worked for me: set(gcf, 'Pointer','watch') drawnow() % <- you need this ... set(gcf, 'pointer','arrow') Note that the ...

4 dagen ago | 0

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Answered
Interpolating linearly between many values in a vector
>> t_old = 1:10; % times 1:N >> rate = 1000; % 1 kHz >> t_new = linspace(t_old(1),t_old(end),(numel(t_old)-1)*rate+1);

4 dagen ago | 0

Answered
How to check if one of output variables is not called
You can use nargout to detect how many output arguments are requested: if nargout>0 varargout{1} = x+y; end if nargout>1...

4 dagen ago | 0

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Answered
I have multiple equations that depend on a specific value and would like matlab to ask the user which equation to use and what the specific value is and then print that value but it's giving me trouble.
Your code is mixed up with the (meta-)data (i.e. the variable names named as material types), which is a very bad practice and s...

4 dagen ago | 0

Answered
cprintf not work in linux command window
"open a command window in Linux system" cprintf works in the MATLAB Command Window: https://www.mathworks.com/help/matlab/ref/...

4 dagen ago | 0

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Answered
Interrupting a Callback with a Push Button
" Is there another trick you recommend for this issue" The simplest solution is to use nested functions: simply define a logica...

4 dagen ago | 0

Answered
Conversion to cell from double is not possible
A = cell2mat(dataC(:,1)); B = A * pi * 2; dataC(:,3) = num2cell(B); % <- you need NUM2CELL!

4 dagen ago | 1

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Answered
remove row of matrix inside cell
You could use cellfun like this: >> F = @(m,x) m(setdiff(1:size(m,1),x),:); >> C = cellfun(F,A,B,'uni',0); >> C{:} ans = ...

4 dagen ago | 0

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Answered
Writing table variables with quotations marks ("Placeholder variable name")
'QuoteStrings',true https://www.mathworks.com/help/matlab/ref/writetable.html#btyc9ne-1_sep_btyc9ne-1-QuoteStrings Otherwise i...

5 dagen ago | 1

Answered
Taking out entries of a Vector to make a new Vector
Where V is your vector: X = V(4:4:end); Y = V; Y(4:4:end) = [];

9 dagen ago | 0

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Answered
automatically filling a matrix
Method one: eye and kron: >> n = 5; >> j = 6; >> M = kron(-eye(j),ones(n,1)) M = -1 0 0 0 0 0 ...

11 dagen ago | 0

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Answered
Looping within a structure
You can easily loop over the fieldnames: F = fieldnames(mystruct); for k = 1:numel(F) A = mystruct.(F{k}); ... do wh...

11 dagen ago | 0

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Answered
How to convert a structure array into vector
S(1).F1 = [1,2,3,4,5]; S(2).F1 = [10,20]; S(1).F2 = [2,4,6,8,10]; S(2).F2 = [150,200]; F = fieldnames(S); C = num2cell(stru...

11 dagen ago | 1

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Answered
Storing multiple matrices created by multiple executions of a function
Method one: input/output arguments: function [A,B] = mainfun(N) [A,B] = recfun(N,{},{}); end function [A,B] = recfun(N,A,B) ...

11 dagen ago | 0

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Answered
How can I find consecutive digits seperated by spaces?
Simple solution using a dynamic match expression: >> str = '1 1 1 4 4 6 7 7 7 7'; >> out = regexprep(str,'(\d)(??( $1)*)','${n...

11 dagen ago | 1

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Answered
Output from nested struct into numerical / string array
string({mystruct.somenesting.objecttype.name}) cat(1,mystruct.somenesting.somethingelse.size) % ^ change this to suit the si...

11 dagen ago | 0

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Answered
convert a 10x2 matrix into x,y coordinates
>> M = [1,2;3,4;5,6] M = 1 2 3 4 5 6 >> V = 1:size(M,1); >> fprintf('(x%d,y%d)=(%d,%d)\n',[V;V;M.']) (x1,y1)=(1,...

13 dagen ago | 0

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