Matlab

eigenvector with the minimum eigenvalue, how to find a stable solution
Dear all, Given a real symmetric matrix A, the eigenvector, V_min, for the minimum eigenvalue, Lambda_min, need to be calculated. Surely there are various numerical algorithms to calculate it, but my impression is that if the minimum eigenvalue is very close to 0, the solution is not numerically stable (... 7 Feb 2010 14:14

can anyone help me: error in training this narx neural network: controller design
hi all, im building a model reference controller for a plant in matlab editor using narxsp network. i just started using matlab. i request u all to help me. im getting only one error. i mentioned below abt it. the proram is of 3 parts 1st: identification of plant 2nd: controller design- the error is in this part 3r... 7 Feb 2010 08:39

create signal block
i have already worked the inverse kinematics for a robot path, and i have already sampled the data (at regular time instants) for the joints in MATLAB. how to create a signal block in simulink so as to feed these data from the MATLAB workspace to the joint actuator in my simmechanics robot model? ... 7 Feb 2010 08:39

Motion estimation vs. background subtraction
http://www.dspdesignline.com/howto/210000460 check this out...might help u! ... 14 Feb 2010 21:51

NNz won't take a 160-by-120 binary image??
Here i am trying to parse a 160-by-120 binary image size to the neural network but it throwing exceptions i don't understand. can someone help me out on how to put an image to the NNs? i also tried to flatten the image before passing it in but same error. input = image; %160-by-120 binary image size(basically just b... 8 Feb 2010 17:57

Face recognition technique for newbie
"David Miller" <clothink121(a)hotmail.co.uk> wrote in message <hea3pn$qe7$1(a)fred.mathworks.com>... Hello there, Hello I am starting a project on face recognition (yeah!!), but the problem is I am in very early stages also a newbie when it comes to matlab. I do not have a strong maths background know that matl... 22 Feb 2010 12:58

ROC
"Eric Guild" <eric.guild(a)afit.edu> wrote in message <h161em$en7$1(a)fred.mathworks.com>... Hi all, I have two groups of data with a mean and a variance, which I named M1/M2 and V1/V2. I plotted the Gaussian distribution of these groups of data by using this formula: G1 = (1/sqrt(2*pi)*V1)*(exp(-(x - M1).^2./... 7 Feb 2010 05:24

Right approach for using ROC curve (perfcurve) ?
"MatlabBo St" <temporarybobi(a)yahoo.de> wrote in message <hfp2rr$beo$1(a)fred.mathworks.com>... Hi there, could anybody help me understand the right approach of using the ROC curve? I have labels '0' and '1', and truePositivies and falsePositivies. I would like to use this: [Xplot,Yplot] = perfcu... 7 Feb 2010 05:24

Plotting weibull graph
i m requesting help for my assignment i have y = [6.73 16.35 25.96 45.19 74.04 83.65 93.27] as percentage x = [100 200 250 420 588 708 1044] how do i plot them in a weibull plot or in a weibull graph ... 7 Feb 2010 05:24

ROC for average of Neural Nets
"Manos " <ezoulias(a)in.gr> wrote in message <h0gn49$729$1(a)fred.mathworks.com>... Dear friends, I am a Matlab2008a user and I have already run many and various Neural Nets. I use the following code to run the Neural net 100 times, its time with different test, val and training set, for this i use my function spl... 7 Feb 2010 05:24