Matlab

randperm cell array
hello, i have problems using the command "randperm". i want to randomize a cell array, containing pictures. cell_array = {'1.jpg',........'80.jpg'}; now the command cell_array = randperm(length(cell_array)) creates random numbers, but i can´t use the random numbers to re-index my cell-array. well probably it´s... 18 Mar 2010 08:09

randperm cell array
hello, i have problems using the command "randperm". i want to randomize a cell array, containing pictures. cell_array = {'1.jpg',........'80.jpg'}; now the command cell_array = randperm(length(cell_array)) creates random numbers, but i can´t use the random numbers to re-index my cell-array. well probably it´s... 18 Mar 2010 09:19

Object length-width measurement
Hi to everyone, I have the image of beans below, http://www.flickr.com/photos/48553451(a)N08/4442334371/ I want to measure length and width for every individual bean. As you see the length is the longest axis that means the distance between two pixels that are furthest to each other on the bean image and the width i... 23 Mar 2010 13:37

Error with accelerator mode
Hi, When I try to play with the accelerator mode, I have this message in command windows when rtw compile my model : Error: File: s113_b13638_eg07d_Outputs.tlc Line: 1 Column: 1 A %implements directive must appear within a block template file and must match the %language and type specified Can you help me ? ... 24 Mar 2010 20:30

axis units
I am plotting a figure in Matlab. The range is from -4e6 to +4e6. So one axis has the ticks -4, -3... 1 2 3 4 and then a 'x 10^6' at the top of the axis. I would like to add a unit to the 'x 10^6' such that it reads 'x 10^6m' but I can't find out how to do it. When a add a figure label, it places the label text far... 18 Mar 2010 12:58

Create a randomized vector with ones and zeros
I would like to create a vector [1x 200] which contains the values 1 and 0. The amount of ones is depending on a certain preset percentage and is randomly distrubuted over this vector. What is the best way to create such a vector? ... 18 Mar 2010 09:18

ODE and external function as input
Hi, I would like to integrate a ODE system. However, although the script below works well when I use a function sin(wt), I don't know how to use an external function which is the result of an experiment. How can we handle with this problem ? %principal script Here input signal is only an example but I want to rep... 18 Mar 2010 08:09

Implementation of FFT and IFFT in Matlab
Hello I have a rectangular function defined as follows tstop = 10E-3; t=-0.1:dt:0.1; p_i=(1/2)*(sign(t)-sign(t-tstop)); input = figure; plot(t,p_i) rge = 0.05; axis([-rge rge 0 1]); xlabel('time') ylabel('amplitude') title('Input step function') Then I take a Centered FFT [pw,frequencyRange] = cen... 18 Mar 2010 20:06

??? Unexpected or internal error encountered in "slOneSimStep". Please report this to The MathWorks if you can cause it to recur.
Hallo, i have a model to simuliate. There are some data schould be converted from double type to uint16. The error "??? Unexpected or internal error encountered in "slOneSimStep". Please report this to The MathWorks if you can cause it to recur." occurs when one signale bigger than 15. I copied the data input b... 18 Mar 2010 10:29

Problem while trying to install matlab 2009b in windows 7-64 bit
I have exactly the same copncern when attending to install matlab R2010a on a vaio laptop running under windows-7 64 bit. The installation start copying some files in a temp directory and abruptly stop. Note that the processus setup.exe is still runnig but nothing happen.... Any idea ??? Anything to be tried ??? ... 20 Apr 2010 15:54