Matlab

a problem of decision tree for regression
>> clc clear %now i import a file from excel and give the matrix the name 'data' %each row is a sample, each column is a attribute input=data(:,1:13); output=data(:,14); [train,test]=crossvalind('holdout',output); input_train=input(train,:); output_train=output(train,:); input_test=input(test,:); out... 30 Nov 2009 11:20

How can plot signal by cwt?
Hi all, I have a signal (From Strain Gauge) When I use the function cwt I just draw the spectrum of the signal How can I draw signals as wavelet transform to determine the peculiar point on the graph of signal? Thanks! ... 29 Nov 2009 23:24

stupid function
open contains a matrix 99*1 i want to create a matrix call derivato where the element number 1 is the subtract of the first with the second element of the vector open ...the element number 2 is the subtract of the the second with the third element...ecc... function deriva(open) for prova=1:(length(open)-1) deri... 2 Dec 2009 07:37

How use datcomimport
Dear SIAM, put on top the datcom.out following text THIS SOFTWARE AND ANY ACCOMPANYING DOCUMENTATION IS RELEASED "AS IS". THE U.S. GOVERNMENT MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, CONCERNING THIS SOFTWARE AND ANY ACCOMPANYING DOCUMENTATION, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OF MER... 29 Nov 2009 19:01

Aerosim Blockset
"Kyle Mulholland" <mul_12(a)hotmail.com> wrote in message <ef58ca3.-1(a)webcrossing.raydaftYaTP>... Just wondering if any limitiations/issues have been identified in Aerosim Blockset. Cheers, Kyle Ive been trying to use the blockset to simulate a UAV model. However if developing an electric/battery powered ... 29 Nov 2009 19:01

Aerosim/MATLAB/SIMULINK UAV simulation
Hi all, So Ive decided to simulate a UAV in MATLAB/SIMULINK using the Aerosim Blockset by uDynamics, which so far I have not had much luck in succeding in, and that not many people have heard off or have used this blockset (thats the impression that I am getting), which makes it that little bit harder to work with. ... 29 Nov 2009 19:01

Simulink - QPSK in IEEE 802.15.4
Hello everyone! Being new to matlab I 've been struggling to simulate QPSK modulation for the IEEE 802.15.4 in Simulink. So, I generate a random integer number from 0-15 which in order to convert to binary i pass through a integer to bit converter block with an output of 4 bits. Then I want to map the output to 32 b... 29 Nov 2009 11:14

treefit maxium pruning level
Hi there, how could I find out the maximum pruning level (or the tree depth / size) created with treefit? e.g. t1 = treefit(X,Y); ..... maxLevelPrune .... ?!? t2 = treeprune(t1,'level',maxLevelPrune ); Thanks in advance ... 29 Nov 2009 03:41

Block Toeplitz Matrix
Hi, Is there any method in Matlab to generate a BLOCK Toeplitz matrix whose structure is [a b c 0 0 0 a b c 0 0 0 a b c ] where a,b, c, and all 0's are COLUMN vectors of the same length r x 1. ... 30 Nov 2009 05:52

ScatterHist m file
Does anybody have Scatterhist function in MATLAB. I have MATLAB version 7.0, that doesn't have scatter hist as in built function. I want it to plot marginals along with scatter plot of the dependent variable. ... 30 Nov 2009 12:28