Matlab

error message while compiling engdemo.c
Hello, I need to compile a fortran program which calls matlab functions. As I have never done it before, I try to compile examples given on the matlab documentation: engdemo.c and fengdemo.f. When I try to compile engdemo.c (with the command mex engdemo.c), I have the following error message: =====================... 21 Jan 2010 11:09

error message while compiling engdemo.c
Hello, I need to compile a fortran program which calls matlab functions. As I have never done it before, I try to compile examples given on the matlab documentation: engdemo.c and fengdemo.f. When I try to compile engdemo.c (with the command mex engdemo.c), I have the following error message: =====================... 21 Jan 2010 11:09

Linear regression analysis
Hi guys, I wanted to plot two image together in one backscatter plot. The aim is to find the best fit linear regression for the Max. values in the image's values plotted in Y-direction and the best fit regression line for the Min. values in the values plotted in Y-Direction as well. Any idea how can I implement that... 21 Jan 2010 11:09

Scatter plot - making a contour map of point concentration
Hi guys, I'm relatively new to MATLAB and am having some trouble working out the best way to make a contour map. Basically I have a set of x-y coordinates of points (around 300,000 of them) and I want to make a contour map of their concentration in the x-y plane. Ie. Closer contours in areas where there are a larger ... 24 Jan 2010 21:27

box constraint in svmtrain
The svmtrain does not apply the box constraint as in the traditional soft-margin SVM: norm(a,inf)<=C instead, according to the code, it seems to replace the box constraint with (1/2C)*norm(a,2)^2 in the objective function rather than the constraint. Can anyone give a reference for this implementation of SVM? ... 21 Jan 2010 10:02

Data Concurrency Issues
Dear all, I have a simulink model which refers one more model inside. I want to run this model using PCT in different workers. However i have realized that there are some data concurrency issues while running this model in different workers. so i have generated a code as mentioned in the support documentation 'Resol... 22 Jan 2010 07:17

Cannot load .asc file
Hi I wantto load 4 .asc files but one of the file didn't load it print an error: Number of columns on line 4891 of ASCII file FlowWater_3.asc must be the same as previous lines. what can I do? Thanks ... 2 Feb 2010 15:17

??? Attempt to reference field of non-structure array.
Hello, when I run the Simulink Model with the play button, it runs fine. In contrast, when I use the 'Command Window' to run the same Simulink Model, (typing in sim(nh.mdl,'50'); for example) '??? Attempt to reference field of non-structure array.' shows up. I don't know how I could handle this without this ... 21 Jan 2010 08:54

Help me please,it is very easy!
Hello for everyone, I am beginning in Matlab. This is a vector: [1 1 1 1 1 1 1 1 1 2 2 3 4 3 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 2 2 3 4 3 2 3 2 1 1 1 1 1] I choose those values over "2": [0 0 0 0 0 0 0 0 0 0 0 3 4 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 3 4 3 0 3 0 0 0 0 0 0] I have 4 clusters.I search for... 23 Jan 2010 14:19

Saving data after running parallel simulations
Dear all, Could anyone explain it to me ? How could i save the data from each workspace after running parallel simulations. or rather how could i collect the data from each workspace and store it in base workspace. Thanks Sumant ... 21 Jan 2010 05:38