Answered
using control constraints in ode45
I must be missing something subtle. It looks like your equations are essentially dydt(1) = y(2); if (f(y(1),(2),y(3)) <...

14 years ago | 0

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Answered
How to draw a bar graph from cell array with different size length?
This will extract the values and add zeros to the end, then extract all to a matrix. But are you sure the missing values are al...

14 years ago | 0

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Answered
Shortcut Key On Guide
For the first part, set the |KeyPressFcn| property of the GUI figure window. Enter |docsearch('figure properties')| and scroll ...

14 years ago | 0

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merging column vectors from the loop in to a single matrix
% preallocate space x = zeros(m,n); % iterate <=> loop over columns for k = 1:n y = ... % make vector here x(...

14 years ago | 1

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how to list functions/toolboxes required by a program
I think the answers to this question cover all the options I know of: http://www.mathworks.com/matlabcentral/answers/532-how-do-...

14 years ago | 0

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Answered
How does getPosition work in impoly?
I'm not seeing the behavior you observe. You wrote _the "h=getPosition" function_, so I'm wondering if you're overwriting your ...

14 years ago | 0

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Answered
xlsfinfo question
A little bit of clarification needed... From your code it appears that you have |m| directories; in any given directory there a...

14 years ago | 0

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Answered
In an assignment A(I) = B, the number of elements in B and I must be the same.
|G| is growing in the loop, so |Pin(z)*G| is a vector (for |m >= 2|). You can't assign a vector to the single value |Pout(m)|, ...

14 years ago | 0

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Answered
problem with saving dataset
What is the size of the variable in the workspace? (You can run |whos| to see this info.) If it's ~137 Mb then my guess is t...

14 years ago | 0

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How to get the coordinate of this four points?
With such a clean image, you can do it pretty easily: x = imread('barcode.gif'); y = x<15; figure imagesc(y), colormap(...

14 years ago | 1

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'legend' problem
As Junaid says, plotting all together is the nicest solution. However, if, for some reason, that isn't feasible for you, you ca...

14 years ago | 0

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problem with slider to move the plot
You could make a slider to control the zoom level of the x-axis, if that's what you mean: t = linspace(0,10); y = t.*cos(t)...

14 years ago | 0

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Fastest way of computing standard errors / inverting X'X
|inv| is evil -- avoid! The quickest way to do a regression is c = X\y; then you can calculate errors yourself res...

14 years ago | 2

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with cycle, changing the content of text
Something like this? for k = 1:n figure(k) % get x and y plot(x,y) xbar = mean(x); ybar = mean(y); st...

14 years ago | 1

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Answered
index must be a positive integer or logical.
A stem plot is for discrete time points, by its very nature. Indeed, all plots are discrete at some level. Your loop is in tim...

14 years ago | 1

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calculation of the linear regression equation
If you have Statistics Toolbox doc regress If not, you can do it yourself (although you'll have to take care of NaNs or ...

14 years ago | 0

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Answered
numel errors in matlab
My guess is that your line n(i,1)=(va(i,1)/3.6)*60*ik(i,1)*ie/(2*pi*rd); is resulting in an empty array on the right-hand si...

14 years ago | 0

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converting cell of strings in arry or cell of numbers
Try |str2double(tsince)|

14 years ago | 0

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Cell array of Cells to Cell array of Strings
Ah yes. This is a classic. data = [z_TestImport{:}]; is probably what you're looking for. The other option is to use the |...

14 years ago | 5

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Answered
strcmp and rows of dataset table
Sounds like a job for categorical arrays! Huzzah! (Assuming you have Statistics Toolbox.) BTW, you said "dataset" but you're ...

14 years ago | 1

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Answered
show partically blokced x-axis
Quick fix: |set(gca,'Layer','top')| Cheap'n'dirty -- that's me :)

14 years ago | 1

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Quick question/explination Re 'movavg'
With |filter|, ignore the first n points. However, you're using the |'e'| option, which doesn't actually call filter. It uses ...

14 years ago | 0

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In an assignment A(I) = B, the number of elements in B and I must be the same
The only likely culprit is that your global variables are not what you think they are. The right-hand side of line 18 is probab...

14 years ago | 0

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Answered
Courier problem
Courier is a bitmap font so it doesn't rotate. The other fonts you tried are true type. Use Courier New instead.

14 years ago | 2

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Errors in Menu program
Pretty much what it says. The line |choice = eoption;| implies that |eoption| is a function call (because it is asking for an o...

14 years ago | 0

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Answered
Setting name of variable equal to name of imported file
If you're going to be looping on the files, you're probably doing something like x = cellstr(ls('*.xlsx')); for k = 1:le...

14 years ago | 0

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How to create a dataset array from table?
It seems like the problem is that your data is in the form of a 3824-by-97 cell array -- ie every value is in its own cell. If,...

14 years ago | 1

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Answered
importing data from excel, finding the last row and inserting value in a matrix
If you're already reading in the data, why not just query its size? nrows = size(cycle,1); grade = [0,0;nrows,0];

14 years ago | 0

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Answered
Set of points to Cartesian system
You can use |cmdscale| to reconstruct coordinates from distances. You will need a further restriction to determine the location...

14 years ago | 0

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Answered
Parsing Complicated text file header
If the headers are uniformly formatted, you could simplify this a bit, but this should work: fid = fopen('data.txt'); s...

14 years ago | 0

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