Matlab

.mex compatibility across matlab releases
How compatible are .mex files across Matlab releases (say, > R2007)? i.e. If I compile a .mex binary using Matlab R2008b, will the same binary work in R2010a? thank you, Tobin Fricke ... 10 May 2010 18:46

Positive filter
I have a power signal that is strictly positive. I'd like to low-pass filter it, retaining the positive property. I know I can use a simple moving average FIR filter with positive coefficients. e.g. B=[1 1 1 1], A=[4] but is there a cleverer way of designing such a filter? ... 10 May 2010 17:39

Eigenvector centrality
Hello, I would like to do eigenvector centrality analysis on my MRI scan timeseries data. However I have no experience in this. Thus I am looking for a toolbox, or functions available in Matlab. I didn't find any useful feature in afni or spm that does it. So I need your suggestion or help. Thanks. ... 10 May 2010 17:39

Problem with Move Camera Forward/Back using Camera Toolbar
Hi, When I plot 3D data with large xyz values, the "Move Camera Forward/Back" button on the Camera toolbar does not work. However, when I manually change the CameraPosition property in the Command Window, it adjusts the camera position fine. I understand that the axes are very large, but it is simply the nature of t... 10 May 2010 17:39

convert pixel to cm
Hi, Please how to know the size of 1 pixel in cm (or inches) in an image?? Must I know the resolution of my screen? Thanks. ... 18 May 2010 05:59

Standalone Parallel Computing
Hello! I am also puzzled about the fact, that it is not possible to run a parallel task in a compiled program using the local scheduler! I would assume that the MCR will be started multiple times and that a communication will be established beetween the different running engines!? It would be great if you implem... 10 May 2010 17:39

plotting discrete time on x axis
My data is datetime, value pairs. I don't need to see the date, but the seeing time on the x axis is critcal. The times are discrete minute intervals (5 minutes) with the first being 07:30:00 and the next 07:35:00 and so on. How do I plot the x axis to show those times? Thanks. ... 11 May 2010 00:17

2D vector to 3D vector that lie on the same plane
Hi, I am a beginner at Matlab and a beginner in image processing. I am working with 2D images with a still object in a static scene. I've calibrated the camera so I have information on the parameters of the scene. I want to compute a set of corresponding 3D vectors that lie on a plane containing each 2D vec... 13 May 2010 11:35

Undocking figure
Hi all, I'm having a problem closing the "Figures" screen (located under Desktop > Figures). I builded a GUI consisting of a undocked graph with a menu bar at the top. By pressing a button on the GUI, the figure is docked inside the "Figures" screen, giving the possibility to edit the graph prior to exportation.... 10 May 2010 16:32

Best fit line with constrained coefficients
I am trying to fit a line to my data points, and while polyfit and regstats will easily fit a line, it may not be physically relevant. How do I edit these functions so they will fit a regression line with a positive slope. If you care, here is some sample data. x=[282.2540 285.8649 253.2350 271.8654 293.8727 ... 11 May 2010 17:54