Matlab

Extracting multiple values from a matrix
Hi, I have a large matrix of raw data. I wanted to lookup a value from the first column of the matrix and extract the corresponding row entries from another column. Was wondering what would be the best way to do this. Thanks, Harsh ... 11 Aug 2010 15:49

Matlab DAQ issues
Just got latest matlab release going with windows 7 with the DAQ toolbox. I'm using Nat. Inst. USB-6009. The DAQ interface doesn't recognize that the device has 8 different analog input ranges: in fact the analog input channel properties should include InputRange and don't. Error when you try to set, doesnt show... 11 Aug 2010 14:44

GUI save axes as fig / picture file
I have a matlab gui running, that outputs a FFT plot on an axes. I want to save this plot for future reference and tried using this following code. How ever it gives me the following error: ??? Error using ==> copyobj Conversion to double from struct is not possible. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% functi... 11 Aug 2010 14:44

plotting two matrices
i have two upper triangular matrices X and Y (doubles) and i would like to plot the elements of X against the elements of Y. X contains "scores" and Y contains "sizes", and i would like to see if there is correlation between size and score by plotting each cell of the matrices. my code: for i = 1:1162 for j = i:1... 11 Aug 2010 14:44

Link axes with linkprop
Hi, I have a problem linking axes of my 5 subplots in a figure. I can't use linkaxes because my subplots are linked all between themselves, and linkaxes doesn't work goo when we call it many times. My subplots are these: sub1=subplot(5,1,1); sub2=subplot(5,2,1); sub3=subplot(5,3,1); sub4=subplot(5,4,1); sub5=... 11 Aug 2010 15:49

mnrfit
I am planning my dissertation data analysis, and am looking for a visually effective method. The data is ordinal: the correct result would be a list of locations ordered from near to far, probably 20 or 30 data points. Respondent results will be the order as perceived by the survey subject. The mnrfit function gives a... 12 Aug 2010 16:58

mscohere - window size
hello i know that increasing window size is increasing frequency resolution and that increasing the number of windows (i.e. small window size) helps to find low coherence values (because of increased averaging). i have 2 question concerning window size: 1. i am wondering, if there is a limited window size if i am lo... 11 Aug 2010 13:38

Triu function
I'm trying to use triu to extract the data in the upper part of a very big matrix. Every iteration I have to move the position of the diagonal. The rate and memory limiting bottleneck in my coding appears to be the actual triu part of the script, and I can't see how the code works to try and change it (edit triu doesn'... 11 Aug 2010 13:38

callback status in GUI
Hi All, I am a beginner in GUI programming and I have a question about a callbacks. So I am writing a GUI code that will respond to pressing and releasing a space bar (or any other key, doesn't matter). So I want the program to do one task while the space bar is being pressed and other task while no key is pressed. ... 11 Aug 2010 13:38

Warning: Texture data too large... problem with alphadata in
ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <61e88020-ac77-434d-9f5d-3fd7569c73d6(a)t2g2000yqe.googlegroups.com>... Camille: Why not just do something like imageArray(isnan(imageArray)) = 0; imshow(imageArray, []); If it's still upside down, use flipud() to flip it. Hi, If I p... 11 Aug 2010 13:38