Matlab

multivariate binary logistic regression
Hello, I'm running a binary (2 groups), multivariate (multiple predictors) logistic regression analysis, and would like to test the classification rate. In the case of a single predictor, calculating the classification rate of a logistic regression is fairly straight forward. But, the addition of another predict... 12 Oct 2009 11:48

RTW/rsim executable with S-Function
Hello, I would like to generate an Exe-Application base on a Simulink model. This model contains several C/C++ coded S-Functions. These S-Functions are supported by different people and usually I do not have the original C-Code (black box). Is there a possibility to generate a stand alone application with the ... 22 Oct 2009 05:15

Removing a data cursor programmatically
"Solomon Hurst" <solomon.hurst(a)bendix.com> wrote in message <h9jajg$22i$1(a)fred.mathworks.com>... "Solomon Hurst" <solomon.hurst(a)bendix.com> wrote in message <h9j99d$4k6$1(a)fred.mathworks.com>... "Solomon Hurst" <solomon.hurst(a)bendix.com> wrote in message <h9j7pu$p63$1(a)fred.mathworks.com>... Hello, ... 28 Sep 2009 08:07

Nonlinear State Space modeling
Is it possible tht I can use the same SysId model approach for Nonlinear State Space model as NARX model? (considered for both SISO & MIMO).Coz I donot find nonlinear state space modeling in the system identification toolbox. ... 28 Sep 2009 00:31

Quantization of image and others...
Here is my homework for the upcoming week I have some few questions: { We know a digital image is a quantized version of some underlying &#8220;continuous&#8221; image. For an 8-bit grey-level image, we have 256 levels in quantization. We can further quantize the 256 levels into, say, only 8 levels. In this problem,... 28 Sep 2009 04:50

binary matrix inversion
How to find the inverse of a binary Matrix A , Note that the summation is replaced by xor operation. searching for another matrix B such that A*B=I ( with xor instead of summation) is not efficient, is there another solutions ??? ... 4 Oct 2009 13:14

Matlab, image, log function undefined for uint8
Hi, when I transform my image into log scale, I face problems showing that image with the following error: M=double(imread('Mammogram.jpeg')); LogM=log(1/512+M); imshow(LogM,[]) ??? Error using ==> checkDisplayRange at 22 HIGH must be greater than LOW. Error in ==> imageDisplayValidateParams at 57 c... 19 Oct 2009 04:14

eigenvalues and eigenvectors in decreasing order
Hi everybody, I'm trying to calculate eigenvalues and relative eigenvectors in decreasing order? I've used [V,D] = EIG(X) command, but the order is different from what I need. For example, if I type [A,B] = eig([2 0 0; 0 1 0; 0 0 7]) it assigns A = 0 1 0 1 0 0 0 0... 28 Sep 2009 11:24

matlab decimal precision
Hello, I'm having issues with variable residue due to the 15-16 bit decimal precision that Matlab employs in my model. Here are my steps (values are shown with standard 4 bit display truncation): 1) I'm starting with a value such as 0.2288E-8 . 2) I'm then adding a sample value of 1.6034E-14. 3) I then take off... 28 Sep 2009 17:01

How to convert sine wave signal to square wave in Simulink?
How to convert sine wave signal to square wave in Simulink? ... 27 Sep 2009 17:52