Matlab

Help me by checking this image accessing code using GUI.
I need to access a bunch of images from a folder.For this purpose I used GUIDE tool and I got different errors in different situations as below. ==>Trial 1: function pushbutton1_Callback(hObject, eventdata, handles) clc; [filename,pathname] = uigetfile({'*.png';'*.jpg'},'Select Your Images','Multiselect','on');... 29 Jun 2010 01:59

Help me by checking this image accessing code using GUI.
I need to access a bunch of images from a folder.For this purpose I used GUIDE tool and I got different errors in different situations as below. ==>Trial 1: function pushbutton1_Callback(hObject, eventdata, handles) clc; [filename,pathname] = uigetfile({'*.png';'*.jpg'},'Select Your Images','Multiselect','on');... 28 Jun 2010 08:24

repeating sequence block HELP
Hi all I have a rand block, after that i will round noumber from rand block. That rounded noumber i want to put as a parameter of repeating sequence block, to generate random freq signal. How to do it? put as a parameter in repeating sequence variable "a" and a will be my rounded noumber? PLZ HELP ... 28 Jun 2010 08:24

uicontrol change String
Hello guys, I've got this uicontrol, and I would like to appear panel(k) in my buttom istead of numbers...i.e, there some form to change 'String','5' for panel(i)...in this case i=1, and 'String',6 for panel(i)...in this case i=2. Thanks in advance, a=[5 6 7] panel=find(a<7) i=0 for k=1:length(panel... 28 Jun 2010 11:42

vectorizing code
Dear all, how can I vectorize this pice of code? Let`s say m=100. Thanks for your help. [m n] = size(x); y = sort(x); for i=1:m for j=1:m ecop(i,j) = sum( (x(:,1)<=y(i,1)).*(x(:,2)<=y (j,2)) )/m; end end ... 30 Jun 2010 05:25

Covariance Matrix with NaNs
Hi, I want to compute a Covarianze Matrix from a large Dataset (N=400) with a lot of Observations (T=400). However some of the Observations have NaN. Thus I want to compute the Covariances individually and only for the times where two Variables have observations at the same time. Then I want to fill in these Covarian... 28 Jun 2010 08:24

My PDE is not obeying conservation principle
Hi, My PDE is dN/dt=-c1*dN/dr+c2*dN/dk from that equation I am getting solution N(r,k) for a particular t. Then I tried to calculate the total number of particles for different t by N_sum=dbl integration over 4*pi*r^2*4*pi*k^2*N(r,k) dr dk But it is not coming constant. From time steps 1 to 5 it is decreasing and... 12 Jul 2010 08:29

Problem using Biplot function
I m using biplot function on a dataset(bod1 and bodname) and i m not getting the plot properly (as i was getting last time for the same datasets). Its showing the error below. ??? Error using ==> line Invalid line property: 'variables'. Error in ==> biplot at 118 varHndl = [line(arx(1:2,:),ary(1:2,:), 'Co... 28 Jun 2010 07:19

standard deviation
I have force distribution in 2d. I have to find standard deviation in each time step. Please suggest me what to do so that I can get nice plot with error bar. ... 28 Jun 2010 07:19

separating speech and music in a sound file
i want to separate the speech/voice from the background music in a sound file(.wav file) using fourier transform. i tried to modify my sound signal by removing certain values from the fft of the wav file but the inverse came out to be complex to which i applied abs() n got real values. this corrupted my sound file and ... 28 Jun 2010 08:24