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how to use a simple statement to describe a repeat format output about the function "fprintf"?
fprintf(fid,repmat('%4.2f',1,5),data)

13 years ago | 0

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Answered
Best way to share code within laboratory
We all use a shared network drive that is added to the path on everyone's MATLAB. Every function in the shared drive has a comm...

13 years ago | 0

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Answered
Two y axes in subplot
You can use SUBPLOT to set the location for your PLOTYY call. % Data to plot. x = 0:0.01:20; y1 = 200*exp(-0.05*x)....

13 years ago | 1

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Answered
How to plot the columns (second till 15) data against the firs column (simulation time) instead of plotting against the serial number in once by pressing the plot button?
Let's say your data looks like this: D = (0:.01:1).'; % Used to make the data array... D = [D bsxfun(@power,D,1:10)]; ...

13 years ago | 0

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Answered
How to split a nxn matrix into n vectors
Jan is correct. Doing this is a bad idea. If you need to use the POLYDER function on each row of a large array, there are seve...

13 years ago | 0

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how to find out the correct coefficients from a roots -vector
anonym, you need to think about what you are doing. When you have: a = [2 4 6 8]; this represents this polynomial: 2...

13 years ago | 0

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Floating point accurarcy and COLON
This explains how the colon operator works. It is an interesting read. <http://www.mathworks.com/support/solutions/en/data...

13 years ago | 5

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Answered
input for function drawgraph(coords)
Are you talking about the function on this page? <http://www.mathworks.com/help/dotnetbuilder/ug/c-integration-examples.html#...

13 years ago | 0

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Answered
How to break a while loop in a gui toggle button callback?
Here is an example. Basically you have to flush the event queue by calling DRAWNOW or PAUSE to check if the state of the button...

13 years ago | 1

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Answered
reshape function row wise
Since you don't give a small example of input and expected output (always a bad practice when asking for help!!), I will guess t...

13 years ago | 1

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Answered
"Subscripted assignment dimension mismatch"
This error occurs, much like the message tells you, when you try to put the wrong number (or shape) of items into an array. Her...

13 years ago | 0

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Answered
HISTEQ default not consistent with syntax?
IM = imread('cameraman.tif'); I = histeq(IM); I2 = histeq(IM,ones(1,64)*(numel(IM)/64)); isequal(I,I2) ans = ...

13 years ago | 0

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Answered
change output filename in a loop
<http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F>

13 years ago | 0

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Need an IF boolean that compares a number to all numbers in an array
a = [1,2,3]; b = 2; if any(b==a) disp('b in a') else disp('b not in a') end Also, see the help for ...

13 years ago | 0

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search for string array index
That example fails... But let's try this one: x=['a b c0 d';'a b e1 f';'a x d2 f';'m b e1 f';'a b e1 f']; find(x(:,...

13 years ago | 0

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Prevent rounding of a number.
Why do you think MATLAB is rounding 0.99998474121093744448884876 to 1? F = 0.99998474121093744448884876; F==1 % No ...

13 years ago | 0

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Answered
Read text file containing string and numeric data
fid = fopen('Test.txt'); C = textscan(fid,repmat('%s',1,19),'Headerlines',1) fclose(fid) HeadDiam = str2double(C{8});...

13 years ago | 0

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Answered
Given matrices XX and YY of sizes 3X3, how can I generate the following matrix: [XX(1,1) YY(1,1); XX(1,2) YY(1,2)... ?
For example: XX = magic(3); YY = cumsum(ones(3)); % Your requested matrix. ZZ = [reshape(XX.',[],1) reshape(YY.',[...

13 years ago | 0

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axes problem in a plot
You can set the axes limits to be a certain percent of the data or fixed values, depending on what you want. x = -pi:.00...

13 years ago | 0

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Answered
how to creat Multiplication table
I am not quite sure if this is what you want, but have a look at this: A = 1:5;, B = 1:10; C = bsxfun(@times,A,B.'...

13 years ago | 0

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Answered
hii.. Is it possible to get the coordinates of all the points in a line drawn through plot function in an image?
Aren't there an infinite number of coordinates? Just look at the equation for a line: y = m*x + b; So if you have a s...

13 years ago | 0

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Save data before error
I recommend you either wrap all of your code in a TRY-CATCH or use DBSTOP so that you don't lose your data again. Note that if ...

13 years ago | 0

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Finding the numbers of a vector with the same length?
Here's another solution: D = diff(find([1 ~x 1]))-1; D = histc(D,1:max(D))

13 years ago | 2

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Plotting Points from Cells
Say your cell array is called C, like this: C = cellfun(@(x) rand(1,3),cell(1000,1),'Un',0); Now we can plot the points ...

13 years ago | 2

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Reboot a gui in Matlab
Here is a simple example: function [] = restart_gui() S.f = figure('menubar','none',... 'numbe...

13 years ago | 0

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Answered
How can I generate a matrix with the same vector in all the lines?
I think this is what REPMAT probably is doing behind the scenes: V = 1:3; M = V(ones(1,4),:)

13 years ago | 0

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Composing arrayfun syntax to extract data from structure
O.k., if you are just messing around with ARRAYFUN. C(1,1).idx = [1;1;2;3]; C(2,1).idx = [1;1;2]; C(1,1).s = {'a';'...

13 years ago | 0

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Answered
3D Matrix to replace a square matrix in a for loop?
(To find your MATLAB version, type: ver) Have you looked at BSXFUN? For better suggestions, give some data and a loop that ...

13 years ago | 0

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Angles from XY coordinates from a matrix
Seems like a simple FOR loop would do the trick. for ii = size(a,1):-1:1 P12 = [a(ii,3)-a(ii,1), a(ii,4)-a(ii,2)];...

13 years ago | 2

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Answered
Logical -1 = Logical 1?
Yes: logical([-1 0 1 20 -10 .001 eps ]) The exception is NaN. NaN is non-zero, yet cannot be converted to logical. ...

13 years ago | 0

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