Matlab

scaling t-distributions
Hi all, I have 4 sets of 50 values. I want to generate, let's say 1000 random numbers, based on this data set , I know that these 4 sets are correlated with each other and I want it to be distributed with t-distribution. I can use mvtrnd function r = mvtrnd(co,50,1000) but that gives me mean of zero. Is there any... 8 Apr 2010 10:56

Memory issue with large matrix multiplication, only one row of result needed
Hello, I have the following problem: I am computing a relatively large matrix multiplication, and MATLAB has a memory problem. I need, however, just a single row from the multiplication result: mult_res = matrix_a*matrix_b; needed_res = mult_res(size(matrix_a,1)/2,:) where matrix_a is 4096x36 and matrix_b... 7 Apr 2010 20:17

merge two diagonal matrix
How can I merge two diagonal matrix in matlab wtih different dimensions, for example the first one is 6x6 and dhe second is 194x194, in one that is 200x200 thnx ... 8 Apr 2010 10:56

merge two diagonal matrix
how can I merge in matlab two diagonal matrix with different dimensions, for example the first is 6 x 6, and the second is 194x194, in one diagonal matrix with dimension 200x200. thnx ... 7 Apr 2010 19:09

contourf: fill levels below lower limit
When I use the contourf command with a specific level range, it only fills in the levels that are at or above the limits of that level. If some of the data that I am plotting with contourf has values that are below the lower limit that I specified, these levels are filled white. Is there a way that I can specifically... 8 Apr 2010 01:48

function plot in for loop
Hi to all I have trivial yet puzzling problem I want to plot a function for different values of a parameter. So far so good: clear; clf; g=5; s=[]; for ps=1:2:9 s=[s; sprintf('%s%g','\psi=',ps)]; fplot(@(gc) g^2/(gc/ps+g),[0,40]); hold on end legend(s); This correctly does it, and creates a le... 7 Apr 2010 20:17

return value of standalone executable
Hi, I'm a matlab beginner and want to create a standalone executable from a *.m file which returns unix-like 0 on success and !=0 on error. For example I've tried: function [retVal]=testFunc( ) reVal=1; end Then compiled with mcc and run: $ ./testFunc $ echo $? 0 hm, ... I've read http://www... 7 Apr 2010 20:17

error using dicominfo
Hello I have a similar problem. I'm trying to read a DICOM image and when I use dicominfo I get this warning: Warning: This DICOM file contains multiple values with the same name. The last appearance is kept. when i try to read the data with dicomread, it gives me a empty matrix! the data comes from a GE system.... 7 Apr 2010 18:00

Problem using eval
I'm writing a simple script to streamline creating some variables. To do it I'm using the function 'eval' to create my different variables. I know it's preferable to use arrays but I'm not. This is how I'm using eval: temp=eval(['region' num2str(1)]) Then matlab prints: ??? Index exceeds matrix dimensions. I've ... 8 Apr 2010 15:10

Help!! Error -----> le Matrix dimensions do not match
On Apr 7, 1:50 pm, Cristina <tweetycartoo...(a)hotmail.com> wrote: Hi, I want to use the ind=find() function with <= and =>, but the matrices I want to use don't have the same dimensions. I know it can't work unless they are the same. Is there a way to make more code so that it does work? For example by turning ... 7 Apr 2010 19:09