Matlab

returning image coordinates from the rectangle command
Hello all, I have a shape defined using the rectangle command rectangle('Position',[0 0 51 30],'Curvature',0.8,'FaceColor','k') with the ultimate goal of being able to create a BW mask with this shape centered in a 128x128 blank image. The 'Position' vector doesn't help much given that the positions are nor... 21 Jul 2010 12:26

how to create geoTiff?
Please try: http://www.rotman-baycrest.on.ca/~jimmy/geotiffwrite You can write a 2D or 3D array to a single or multi-band GeoTIFF file, with a GUI to input GeoTIFF parameters. "Gennady " <gok(a)aerometric-ak.com> wrote: Hello, all. I see geotiffread() in Mapping Toolbox. Where is geotiffwrite()? Is it p... 21 Jul 2010 12:26

how to associate the values in a matrix
Hi all. I am having some difficulties to associate the values in a matrix.I have a simple matrix C=[ 1 2; 3 4;6 7] and two variables: x=3 and y. My objective is to see all values in the first column and when the number 3 is achieved variable y must be equal to 4.I have created a simple routine but i am not being able... 21 Jul 2010 12:27

2D deconvulution with complex values
Hi, I'am searching for someone who can help me in thefollowing problem. I have to to a 2D deconvolution with complex matrices. The given possibilities in Matlab within the image processing toolbox are not sufficent, because the input for deconvolution algorithms has to be real. I have a complex PSF and complex "pictu... 21 Jul 2010 15:49

Dirichlet distribution
Hi, I am using the function: function r = drchrnd(a,m) r = gamrnd(repmat(a,m,1),1,m,length(a)); r = r(:,1:end-1) ./ repmat(sum(r,2),1,length(a)-1); to make draws from a Dirichlet distribution (I found it on the matlab web-site). The function works well when "a" is a 2 element vector, but it seems to get the mo... 21 Jul 2010 16:55

Urgent! Help in 'nprtool' and 'svm'
Hi~ I am now doing a project about cancer detection. I got data from 100 people and 600 parameters for each. I also know that whether they are tumor or normal people. I would like to select about 50 parameters which is the most significant in this detection. I have written a program to kick out parameter o... 21 Jul 2010 12:26

Urgent! Help in 'nprtool' and 'svm'
Hi~ I am now doing a project about cancer detection. I got data from 100 people and 600 parameters for each. I also know that whether they are tumor or normal people. I would like to select about 50 parameters which is the most significant in this detection. I have written a program to kick out parameter one b... 21 Jul 2010 12:26

nonlinear regression by least square
Hi, I do have one problem with kinetic modeling. Let's say a reaction occurs in such a way A <------> B (reversible way) where k1 is a constant for A change to B and k2 is a constant for B change to A so I used ODE solver to solve the problem mentioned and successfully get a graph. However, I do not know how to ... 26 Jul 2010 12:43

Urgent! Help in 'nprtool' and 'svm'
Hi~ I am now doing a project about cancer detection. I got data from 100 people and 600 parameters for each. I also know that whether they are tumor or normal people. I would like to select about 50 parameters which is the most significant in this detection. I have written a program to kick out parameter o... 21 Jul 2010 12:26

nonlinear regression by least square
Hi, I do have one problem with kinetic modeling. Let's say a reaction occurs in such a way A <------> B (reversible way) where k1 is a constant for A change to B and k2 is a constant for B change to A so I used ODE solver to solve the problem mentioned and successfully get a graph. However, I do not know how to ... 21 Jul 2010 11:20