Matlab

solutions book
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scatter, varying marker size and conditional colors
In the following code what i want to achieve is the following using the scatter function (for now i am just testing with random data): 1. plot the x,y positions which have varying marker sizes depending on the absolute value of 'velx' I have gotten this to work by setting S=(abs(velx)/10.); 2. velx has a ra... 23 Jul 2010 08:04

Second order sensitivity coefficients
I've an ODE model and i would like to compute second-order sensitivities. Can somebody suggest me a computationally cheaper way? ... 23 Jul 2010 06:59

How to handle global variables?
As far as I understand, in order to make variables global, they need to be stated with "global variablename" in each and every function where they should be available. Is there another way? Maybe I have a poor programming style, but I need lots of variables available in lots of functions. Most of my coding time is s... 23 Jul 2010 12:31

mean ,variance,standard deviation ,kurtosis of image
Sir, could u pls guide me to find mean/kurtosis of an image using 5*5 convlution filter thanx ... 23 Jul 2010 05:56

Matlab Error Handles
A vector contains handles from a plot. I want to check if this vector contains a handle at a certain position how do I do this? Would this work? try figNr = input('text'); current_plot_handle = plot_handles(figNr); catch % If no handle at figNr then display error message. errmsg = lasterr; ... 23 Jul 2010 12:31

constrained optimization
I have data vectors x and y and I would like to minimize a function f(p)=||y-s(p,x)||² with respect to parameters vector p subject to a constraint (y-s(p,x)) < d on each data point (d is a vector the same size as x and y). The problem is the following one: fmincon allows linear/nonlinear constraints but with vectors t... 23 Jul 2010 11:23

cell challenge
i have a <1*39cell>,K containg TL5{1} ans = 'A,B,y,D,E,F,G,H,I,J,K,L,N,M,O,P,Q,R,S1,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i,j,k,l,m,n' I want to have each comma separated symbol in a cell array with each symbol in a separate cell can u please tell me the way ;;;; thank you ... 23 Jul 2010 05:56

system identification toolbox
I want to know how matlab computes the model of the system when input and output data are imported in system identification toolbox and Estimate-> process models is chosen.. Does it directly computes the continuous transfer function or discrete transfer function first and then converting into continuous transfer functi... 23 Jul 2010 04:51

Problems during Generation of a Spherical Point Cloud
Hi, all, I am new to Matlab and using it for image processing. I am writing a function to generate a point cloud of a sphere on a 3D image the size of which is same as the input image BW. Another input XYZD is a 4-element vector containing the X,Y and Z positions of the center point and the diameter of the sphere. ... 25 Jul 2010 00:09