Matlab

Generating a parity check matrix in ldpc
Hi everyone, I m facing difficulty in generating input to ldpc block in simulink ; i have as an input the pixels of an image in binary form of 8 bits each.... kindly help me .... thanks to all ... 24 Jan 2010 23:37

Data cursor reading discontinuous axis data?
Hi everyone! Can anyone tell me, is there any possibility to get the Data Cursor to read discontinuous axis data? A mean using for example 'XData' function to aquire new tick values from an array. It works well with continuous array (5;6;7;8;9;10 ... etc), but can it work with something like this (5; 10; 7; 9; 8; 6.... 25 Jan 2010 05:02

file not found
Hi all, I am working with bioinformatics toolbox and trying to read in CEL files from a directory. I stored all the CEL file names in a spreadsheet, and the file names are stored in a cell after reading the spreadsheet into matlab. When I try to read the file, the error says the file does not exist, but I am sure the... 24 Jan 2010 08:57

GUI: How to embed the Biograph Viewer in the GUI?
Axes is used to show the figures in GUI, but it seems that Axes doesn't work for visualizing the Graph by the function view(biograph). I want to visualize the Graph generated by graph object in my GUI, who can tell me how? ... 24 Jan 2010 07:52

Subscript indices must either be real positive integers or logicals
Hi, I have created a code which works fine for i=1, i=2, i=3 etc but if I have it done in a loop (e.g. for i=1:3) there is an error message saying "Subscript indices must either be real positive integers or logicals" for i=1 <code> ---->works end for i=2 <code> ----> works end for i=1:2 <code> ... 24 Jan 2010 07:52

Percentage display on Y-axis of Histogram
Hi, I have a bunch of data and I want to plot the Histogram graph of them. However, I need to have the percentage of the number of data with respect to the total number of them, instead of just the number of data located at each interval. For example if X = [1 1 2 3 4] I want the value of the first interval to be ... 24 Jan 2010 13:34

Medium Scale quadprog
Hello! I'm using Medium Scale quadprog algorithm from Optimization Toolbox and I'm looking materials about this algorithm. User Guide: http://www.mathworks.com/access/helpdesk/help/toolbox/optim/ug/brnox7l.html#brozzpo says that it is an active-set strategy (also known as a projection method) similar to that of Gi... 24 Jan 2010 04:38

Medium Scale quadprog
Hello! I'm using Medium Scale quadprog algorithm from Optimization Toolbox and I'm looking materials about this algorithm. User Guide: http://www.mathworks.com/access/helpdesk/help/toolbox/optim/ug/brnox7l.html#brozzpo says that it is an active-set strategy (also known as a projection method) similar to that of Gi... 23 Jan 2010 19:55

Selecting a background frame for a moving object differentiation
Hello Everyone, I am a student who has been drafted to work on a moving object segmentation project. If i have a series of frames that make up a video, how can i select the best frame from the lot to use as a background frame for my background subtraction? Many thanks! Obi. ... 24 Jan 2010 06:47

Integration on volume of intersection between two spheres
Hi, I need to integrate a function over the volume obtained after the intersection of two spheres in three dimensions. I can try to divide the volume into tetrahedrons but that is cumbersome. Will appreciate if anyone can point to some general quadrature rules on spherical caps (is that the right word?). -Jo... 23 Jan 2010 21:02