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# G A

Last seen: 3 månader ago Active since 2012

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MATLAB GUI Pushbutton Click Runs Callback Twice

A have found the answer to my question. In GUIDE created and subsequently migrated to Appdesigner dropdown menu, the ValueChang...

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Question

In my code, I still have some GUIDE-style callbacks of dropdown menus as follows (this is just example code): % Value changed f...

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How can I synchronize two split windows in the editor?
I found a solution: if you split window after highlighting, then both windows demonstrate the same highlighting; if you split wi...

nästan 2 år ago | 0

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Question

How can I synchronize two split windows in the editor?
In previous releases, if I highlight function name in, say, left split window, it was automatically highlighted in the right win...

nästan 2 år ago | 1 answer | 0

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How to add a right hand y-axis with the same major and minor ticks?
x = -2*pi:0.1:2*pi; y1 = sin(x); y2 = tan(x); yyaxis left hp1 = plot(x,y1); h1 = gca; h1.YTick = -1:0.5:1; set(h1,'XMin...

ungefär 2 år ago | 0

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Center alignment for tiledlayout
x = -2*pi:0.1:2*pi; y = sin(x); t = tiledlayout(3,6); nexttile([1,2]) plot(x,y) nexttile([1,2]) plot(x,y) nexttile([1,2])...

mer än 2 år ago | 1

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Question

Why the matlab editor (Code Analyser) is not warning about changing size by a variable within a loop
In the 2nd example of the following for-loop the variable A definitely changes its size as it does in the 1st example. However, ...

mer än 2 år ago | 1 answer | 0

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Unable to find explicit solution
Your equation with actual ratio a4/a3 does not have analytical solution. Try to solve it numerically with some tolerance.

mer än 2 år ago | 0

How to create a cell array identical in size, but containing cell position in each cell?
A = {[1,2,3,4]; [1,2,5]; [5,6,1,2,4]; [44]} B = cell(size(A)); for k = 1:length(A) B{k} = repmat(k,1,length(A{k})); end

mer än 2 år ago | 0

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Why does adding a space give vertcat error?
with a space, [1;1 +1] is interpreted as [1;1, +1]. [1;(1 +1)] will be OK.

mer än 2 år ago | 1

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Error using minmax newff
You are using char type variables, i.e filename a = {'abc', 'aa', 'b'; 'abc1', 'aa1', 'b1'} a = 2×3 cell array {'abc' ...

mer än 2 år ago | 0

Why is signal amplitude so low after applying FFT?

mer än 2 år ago | 0

Array indices must be positive integers or logical values.
if length(c) is an even number, then (length(c)+1)/2 is not an integer

mer än 2 år ago | 0

Unrecognized function or variable 'snopt'. Error in Untitledidk (line 362) [x, f, inform, xmul, fmul] = snopt(xg, xlwr, xupr, xmul, xstate, ... What is this function
https://github.com/snopt/snopt-matlab Matlab interface for sparse nonlinear optimization software SNOPT. Requires the SNOPT so...

mer än 2 år ago | 1

Out of Memory. Infinite Recursion.
doc polylog Argument of the polylogarithm, specified as a number, array, symbolic number, symbolic variable, symbolic function,...

mer än 2 år ago | 0

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Question

how to use function handles
Instead of the following, I want to use function handles and move if-statments out of the loop: for n=1:10 if a==0 ...

mer än 2 år ago | 2 answers | 0

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Error while using syms in MATLAB AppDesigner

mer än 2 år ago | 0

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Why am i getting the same error while plotting a function?
doc vpaintegral vpaintegral(f,a,b) numerically approximates f from a to b. vpaintegral(f,[a b]) is equal to vpaintegral(f,a,b)...

mer än 2 år ago | 0

Question

How do I do this without using try/catch?
I am using waitbar within Run_pushbutton_Callback (GUIDE GUI): function Run_pushbutton_Callback(hObject, ~, handles) try wb =...

mer än 2 år ago | 1 answer | 0

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Array indices must be positive integers or logical values.
When x=1, then X_s(x-1) = X_s(0), which is not allowed in Matlab x = 1 x = 1 x = 2 x = 3 x = ...

nästan 3 år ago | 0

Array indices must be positive integers or logical values.
floating point problem; try to use x = round(k/0.2 - 4/0.2 + 1) k = 4.200000000000000 x = 2 k = 4.400000000000...

nästan 3 år ago | 1

Remove from a vector a certain number of elements
sim3 = sim1; sim3(sim3==sim2) = [];

nästan 3 år ago | 0

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Index in position 1 is invalid.
i as an index is not defined in your code, Matlab considers it as 1i by default

nästan 3 år ago | 0

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How can i repeat a formula without for loop?
M = [1,2; 3,4]; LM=log(M); A = 1:5; B = num2cell(A); C = cellfun(@(x) {x*LM}, B); D = cellfun(@(x) {exp(x)},C); D{:}

nästan 3 år ago | 0

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Make subplot use the full figure on buttondown click.
The following works as you requested. You can of course modify the code in more elegant way with numbering handles as ax(n) etc...

nästan 3 år ago | 0

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Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

nästan 3 år ago

Solved

Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

nästan 3 år ago