Matlab

Problem creating an analoginput object for Agilent U2531A using Matlab daq toolbox
Dear all I can create digital I/O device object for my Agilent U2531A device. However, I am having the following error when creating a device object: ----------Creating analoginput('agilentu2500',0) object for adaptor agilentu2500 Error creating analoginput('agilentu2500',0) object for adaptoragilentu2500 Upt... 9 Aug 2010 10:06

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generate correlation matrix
I am trying to find the correlation between images. So i get the image convert to greyscale value and then i calculate correlation using function. I am struck up with how to pass the greyscale value matrix into another matrix. Finally i need the correlation matrix of 3*3 here is the code cartman =imread('rose.j... 6 Aug 2010 15:58

Multidimensional local maxima
I am trying to find all local maxima of an n-dimensional function (which is numerically in the form of a matrix). Does anyone know of a fast method for this? Thanks in advance. ... 5 Aug 2010 10:13

Simulink change scope background color
hi.. it is not possible to change the color directly.. one method that all guys mentioned works for it but i have a BETTER METHOD.. by using scope viewer.. 1.right click on any block in the simulink. then click on "signal & scope Manager" 2.then a window opens with two major sections""generators" na "viewers" o... 5 Aug 2010 06:57

mean of quantized image
sir, i have hsv image which is quantized to 166 bins now i want to find the occurence of each color in those bins and find its mean ... 5 Aug 2010 08:01

Eliminating negative zeros in a matrix
Hi, I'm trying to make a Matlab movie of a function I wrote, using the spy command. The problem is that some elements that should be zero in the matrix I want to plot, are actually -0.0000 (or 0.0000), probably due to rounding errors. How do I make sure these will actually be 0? I tried rounding every element ... 5 Aug 2010 08:01

Vectorisation With Indefinite Indices
Hi everyone, I'm currently having a problem with some code that creates a matrix through vectorisation rather than a loop (to increase speed). I'm having a little trouble figuring out how to do this as it is not the same process as I have used to create other matrices with vectorisation. I'm sure there's a simple ... 5 Aug 2010 12:26

how to optimize mixed parameters?
Hi all I am new to matlab, but need to perform an optimisation using matlab(need to, not must, but i think matlab is powerful enough to do this). right now i only know fminsearch, but as i known this function only deal with continues parameters, what if i also have discreted parameters, what should I do to perform s... 9 Aug 2010 12:19

count number of triangles in a diagram
I have some co-ordinates and I have drawn a network with lines using "line" function. so there are some lines, some triangles, some quadrilaterals etc. is there any way in MATLAB that can automatically tell me only how many triangles are there and what are their vertices? tha'd be a life saver. thank you. ... 5 Aug 2010 16:54