Matlab

arx command
I am using a ARX command to model a MIMO system. I wrote my own algorithm for least squares regression(LSR) and identify the model. Lets say Ua and Ub are the inputs. These two inputs are correlated Ua = 20-Ub where Ub = {4,5,6,7,...16}. So the input signal generated for MIMO identification will have correlated inputs.... 10 May 2010 23:12

Resolution of two equations with two unknown
"John D'Errico" <woodchips(a)rochester.rr.com> wrote in message <hsabv3$18f$1(a)fred.mathworks.com>... "Ben Ben" <ben22240(a)yahoo.fr> wrote in message <hsaagb$br$1(a)fred.mathworks.com>... Please help me to solve this équations with Matalab, f(x,y)=0, g(x,y)=0, near un point x0, y0. In one dimension, Matlab give ... 10 May 2010 22:06

How can I tell if two series are positively or negativelycorrelated?
Hello all, I have two series,one before an event and the other after the event, that I want to see if they are statistically significant different.I transformed them so they will both be Gaussian. I used a student's t-test and I found that they are different for p<0.001. How can I tell if they are positively or nega... 10 May 2010 22:06

Resolution of two equations with two unknown
"Ben Ben" <ben22240(a)yahoo.fr> wrote in message <hsaagb$br$1(a)fred.mathworks.com>... Please help me to solve this équations with Matalab, f(x,y)=0, g(x,y)=0, near un point x0, y0. In one dimension, Matlab give fzero(f,x0), but in two dimension, i don't see the solution. Thank you for your help. Since there ar... 10 May 2010 22:06

Resolution of two equations with two unknown
Please help me to solve this équations with Matalab, f(x,y)=0, g(x,y)=0, near un point x0, y0. In one dimension, Matlab give fzero(f,x0), but in two dimension, i don't see the solution. Thank you for your help. ... 10 May 2010 22:06

support vector machine number of features and samples
Hello, I have a question concerning the number of features that can be included in the training of the support vector machine (svmtrain function). How many features can be included for one class? I have 25 images (16x16=256 features) that I classified (binary). The training procedure gave an accuracy of 71% corre... 10 May 2010 19:53

efficient programming
Hi, I have this problem k5=rand(10,10); index=[1 5 7]; I want to zero all elements in matrix k5, that are in line 1, 5 and 7. This is how I do it for i=1:3 for j=1:10 k5(index(i),j)=0; end end is there a way to avoid the double for loop, like using indexes? Thanks ... 13 May 2010 18:16

technical help how to extract AVHRR NDVI values for points
I want to extract information such as NDVI from NOOA-AVHRR for 10 years for a point locations with geographic coordinates ibut not Polygons. Is there any way to process such information in matlab? ... 10 May 2010 18:46

Rotating quiver plots
Hi, I am trying to rotate a quiver plot using the 'rotate' command but it does not seem to work. I have plotted my quiver plot on the figure as where I did a pcolor plot. I am able to rotate the pcolor plot to the direction that is needed but not the quiver plot: w2=0.4; h2=0.6;%0.5 A4 = axes('position',[0.1 0.... 10 May 2010 18:46

Memory Leak loading many *.mat files.
"chairmanK " <chairmanK_atgmaildotcom(a)foobar.org> wrote in message <hoj9p8$5o2$1(a)fred.mathworks.com>... I have a similar problem. Another Bump! for this problem. I read a large binary file, do some signal processing, save plots as .png and .fig, and save the results in a .mat for later inspection. As I loo... 11 May 2010 12:16