Answered
how to draw the line of known slope and intercept
You could also do it using MATLAB's polynomial functions... % Data a = -2; b = 3; c = 8; x = 3; y = -2/3; % No...

15 years ago | 4

Answered
Intermingle data points in plot
It shouldn't take days to plot even that many points. Please give a small but succinct example which shows what you are doing. ...

15 years ago | 0

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Answered
GUI - How to differentiate the handles of the overall GUI vs. Callback function of each component?
Don't name your global variable the same name as any local variable where it will be used. This is one of the problems with usi...

15 years ago | 0

Answered
How to find repeated sequence , and the times of repeat, in array by Matlab?
Here is another version which returns in strings and only returns those patterns that repeat and are of length >1: % This...

15 years ago | 2

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GUI - Default value of the radio button group
The default should be the first button created. G = uibuttongroup; R(1) = uicontrol(G,'style','radio',... ...

15 years ago | 1

Answered
MATLAB GUI - Set transparent background color for components
For example.... F = figure; B = uicontrol('style','text','string','hello'); pause(.75) % Pause to see the change.......

15 years ago | 1

Answered
replace column
% 2D example: A = zeros(5) A(:,3) = 1 % 3D example: A = zeros(3,3,3) A(:,2,:) = 1

15 years ago | 0

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Answered
KeyPressFcn problem
Try the WindowKeyPressFcn instead.

15 years ago | 1

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Answered
I have a question about multiplying two series...
That is some bizarre code indeed. Would you mind translating the help text into English please? If n1 and n2 were meant to be ...

15 years ago | 0

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How do I set the wait time during program execution?
pause(1) Also, see the help for the <http://www.mathworks.com/help/techdoc/ref/pause.html PAUSE> function.

15 years ago | 14

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plotting matrix of number as image
surf(magic(3)) rotate3d % or image(magic(3))

15 years ago | 0

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plotting a vector field
Put this command after the call to QUIVER3: hold on

15 years ago | 0

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Answered
ascii to binary, binary to ascii
char(bin2dec(reshape(y,7,[]).')).'

15 years ago | 1

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Answered
Question on number accuracy and indexing
This is the old <http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F Floating Point FA...

15 years ago | 0

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Answered
How to use horizontal sliders to slide and show multiple axes
Here is an example: function [] = slider_ex() % Help goes here. Sz = get(0,'screensize'); S.fh = figure('units','pi...

15 years ago | 0

Answered
Performing Action to ALL 'struct' Variables
% Create several structures with different names... structn.dat = 1:10; structm.dat = 1:10; structk.dat = 1:10; % N...

15 years ago | 0

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Answered
Regarding inverse fast fourier transform
Sure, why not: V = 3+4i; F = fft(V) I = ifft(F) *EDIT* In response to the new details. Did you try to take the IFF...

15 years ago | 0

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GUI Text box
S = get(handles.textbox,'string'); % S = 'x(n)=5*rand(1,1)+x(n)' S = S(6:end) x(n) = eval(S) Or, more generally, S = ...

15 years ago | 0

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Answered
Why do you come to "MATLAB Answers"?
All of the above, more or less, and ranked differently according to my mood and need or both. ;-)

15 years ago | 2

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Getting external variables from GUI
Yes, there are many ways to do this. One way is to use EVALIN. Let's say you have a variable named g in the base workspace. T...

15 years ago | 0

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Answered
Splitting up values from variables
x = Displacement(1); or Displacement = Displacement(1);

15 years ago | 1

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Answered
problem with for loop
for ii = logspace(1,5,5) % Do stuff here. end

15 years ago | 2

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Answered
count the number of columns 0 and 1 in a barcode image column 0 is black bars and 1 is a white bars
M=[1 1 0 0 0 0 1 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 1 ...

15 years ago | 0

Answered
Problem with cumsum
CUMSUM does not work for data that isn't single or double. You can write your own function to do this, or cast the data to sing...

15 years ago | 2

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Answered
Dealing with weird Data in Cell Array
C = {'LOLS Purge Supply - Standby.';'GHe-W Supply - Standby.';'0.000320.';'42.9333';'42.9333'} D = regexprep(C,'\d\.$','') ...

15 years ago | 0

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Answered
GUI adding elements in listbox
This is from <http://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples my collection> of GUIs for lear...

15 years ago | 2

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Answered
how to make arrows
As an alternative, here is a way to do it using the ANNOTATION function. Run the code and click where you would like the text t...

15 years ago | 2

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Using unique.m function on NaNs
In addition to what others have said, note this horribly named function: A = [1 nan; 1 nan]; isequalwithequalnans(A(1,:)...

15 years ago | 2

Answered
Help with ismember, intersect functions for matching data
Will this do what you want? Note the requirement that A and B are sorted, which you have... A=[1, 2, 9, 11, 14, 17, 18, 19,...

15 years ago | 1

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Answered
Coordinates related to rbbox in GUI
You could just do like the example in RBBOX, and use the currentpoint property of the axes instead... figure; pcolor(pea...

15 years ago | 1

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