Answered
GUIDE, calling functions
When you are using the guide it is actually a gui for making gui's. What you are actually doing is making an m-file and this m-f...

13 years ago | 0

Answered
Kolmogorov
Matlab is very clear here; your dimensions mitmatch: size(CDF(:,j))=[20,1] while size(horzcat(E(:,j),P(:,j)))=[20,2]. Anothe...

13 years ago | 0

Answered
GUIDE, calling functions
A gui is just some visualization of some m-file. If you want to call a separate m-file you have to call it in the first one. ...

13 years ago | 0

Answered
Implementation of Matrix Division in Matalb
Sleijpen and Van der Vorst 1996 estimate the computation costs of direct methods as N^2.3 with memory costs N^1.7, while iterati...

13 years ago | 1

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Answered
finding focal length of mobile camera
The magnification of a positive lens is M=f/(f-v) (see wikipedia), with f the focal length and v the distance of the center of t...

13 years ago | 0

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Answered
interact with web browser from Matlab
Maybe this link will help: <http://mathworks.com/matlabcentral/fileexchange/29642-get-html-table-data-into-matlab-via-urlread-an...

13 years ago | 0

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problem with a line
Just type doc pwelch and everything you need is there. If I remember correctly a power spectrum discards the phase infor...

13 years ago | 1

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How can I remove the dc component from an Image?
class input for fft2 should be double or single and you are using unit8. I get no errors, but this is probably not the fft2 you ...

13 years ago | 0

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Matlab imshow
this gives an error with imsubstract because the images are not of the same size.

13 years ago | 0

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Answered
write output to a .txt or .mat file
m=34; n=42; N=205; A=zeros(m*N,42); for j=1:N %load matrix B, don't know how you saved it, so just assuming you do ...

13 years ago | 0

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count the number of columns 0 and 1 in a barcode image column 0 is black bars and 1 is a white bars
>> sum(M,2) ans = 8 8 8 8

13 years ago | 0

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Statusbar parallel with computation and motors
To clarify a few things: 1) you have 3 for-loops (indexes i, r and p) where the first includes the others. Where exactly doe yo...

13 years ago | 0

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Statusbar parallel with computation and motors
I addapted the example in the statusbar.m to show you can have them active simultaniously: f=statusbar('Wait some seconds ....

13 years ago | 0

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fitting function of two variables
If you have a predevined function, f(x,y) with unknown coefficients, you can find those with the optimalization toolbox. If ...

13 years ago | 1

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How to set the Attribute possition in a annotation of type rectangle
Your annotation (the highlighted rectangle) has little to do with your axes in which you specify the grid. You can see it yourse...

13 years ago | 0

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Answered
Matlab build in qr decomposition
It is very hard to make an algorithm more efficient than Matlab-build in codes. But you can use some straigth-forward linear alg...

13 years ago | 0

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write output to a .txt or .mat file
If you save and reload your data with y=load(); you have a structure file anyhow. If you want to save your variables i...

13 years ago | 0

Answered
count the number of columns 0 and 1 in a barcode image column 0 is black bars and 1 is a white bars
Hey, convert it to logical class and then sum over a column (or columns). If your image is variable Im, go to logical with ...

13 years ago | 0

Answered
conversion from double to struct
if it is a real sound file like x=load('handel') x = y: [73113x1 double] Fs: 8192 you will have a str...

13 years ago | 1

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Can I concatenate histogram?
If you are using hist to produce histograms, the result will be an array (or matrix, but in that case matlab treats the colums o...

13 years ago | 0

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Simple Integration
Bibha, It get this answer for your third line (note also that on line two a right bracket is missing). second = infin...

13 years ago | 0