Matlab

Plot with events
Hello, I would like to make a plot of a signal and in the x axis in some points i want to draw lines in different color as to mark some events ix x axis. How can i do that ?? thank you in advance jacob ... 29 Apr 2010 04:34

Error using svmclassify - Help Needed
where can i download svmlearn and svmclassify dll. "Tal Jarad" <taljar(a)canada.com> wrote in message <h7h92b$i7t$1(a)fred.mathworks.com>... Hi there, I am using svmlearn and svmclassify to train and classify data. I built the code below but I am getting an error message: ================================= ... 29 Apr 2010 12:23

Matlab Mex Compiler and Csdp.Exe Error
"ali " <rebelfirst(a)gmail.com> wrote in message <hnis2u$67g$1(a)fred.mathworks.com>... pls somebody help me pls Matlab 64 don't come with a compiler. check this out to set a compiler http://www.mathworks.com/support/solutions/en/data/1-6IJJ3L/index.html?solution=1-6IJJ3L ... 29 Apr 2010 04:34

Is there a manual on reading Matlab segmentation fault stack
Hi again. So is there someone out there who actually knows how to read these stack-traces? ... 29 Apr 2010 10:06

Cholesky decomposition
Hi, I need to do a Cholesky decomposition of a matrix, Q. The matrix arises as a weight in computing energy in problems in hydrodynamic stability. Q is negative laplacian in 2d. Q=-(D^2-k^2); (D is a Chebyshev differentiation matrix along y and k is a wavenumber along x obtained on Fourier transforming). Energy= ... 29 Apr 2010 03:30

Cholesky decomposition
Hi, I need to do a Cholesky decomposition of a matrix, Q. The matrix arises as a weight in computing energy in problems in hydrodynamic stability. Q is negative laplacian in 2d. Q=-(D^2-k^2); (D is a Chebyshev differentiation matrix along y and k is a wavenumber along x obtained on Fourier transforming). Energy= ... 29 Apr 2010 10:06

how to avoid NaN
Hi, By using sum function I want to sum up the values in a vector, the results should be 14,532,000 but I get NaN. How can I avoid to get NaN? How can I get 14,532,000 instead of NaN. The vector can be shown, however I cannot get result of summation. Thank you in advance. Regards, Ozge ... 29 Apr 2010 03:30

speed of fread
In some simulations, I know that a performance speed of function 'fread' for data type of 'double' is two times faster than for data type of 'single'. why is that? ... 29 Apr 2010 03:30

image registration
i want to do image registration of two images which r slightly differ from each other, please suggest some code for that.... please help its urgent ... 29 Apr 2010 06:45

Plot probability density function
Works GREAT Theodoros! Alhamdulillaah Thanks! Alfian "Theodoros Giannakopoulos" <tyiannak(a)hotmail.com> wrote in message <fc0v9o$276$1(a)fred.mathworks.com>... "sp " <corrilow(a)mathworks.com> wrote in message <fc0rth$t0f$1(a)fred.mathworks.com>... Hi all I am new to matlab.. I have data x which ... 29 Apr 2010 01:19