octave

I have written an octave script file (.m) If anyone could point me out on how to run octave scripts on unix shell that would be really helpful. I do not want to execute the script by invoking octave program. I am new to unix and octave. Thanks in advance Yes, of course you can write an Octave program. Like so: $ cat octave_program #!/usr/bin/env octave ## Never forget your licence at the top of the files. 1; function [rv] = main (argv) disp ("hello world"); rv = 0; return; endfunction main (argv); $ chmod a+x octave_program # add executable permissions $ ./octave_program hello world There's a

I have a y of size 5000,1 (matrix), which contains integers between 1 and 10. I want to expand those indices into a 1-of-10 vector. I.e., y contains 1,2,3... and I want it to "expand" to: 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 What is the best way to do that? I tried: Y = zeros(5000,10); Y(y) = 1; but it didn't work. It works for vectors though: if y = [2 5 7] , and Y = zeros(1,10) , then Y(y) = [0 1 0 0 1 0 1 0 0 0] . cyborg n=5 Y = ceil(10*rand(n,1)) Yexp = zeros(n,10); Yexp(sub2ind(size(Yexp),1:n,Y')) = 1 Also, consider using sparse, as in: Creating Indicator Matrix .

I want to create a plot showing connections between nodes from an adjacency matrix like the one below. gplot seems like the best tool for this. However, in order to use it, I need to pass the coordinate of each node. The problem is that I don't know where the coordinates should be, I was hoping the function would be capable of figuring out a good layout for me. For example here's my output using the following arbitrary coordinates: A = [1 1 0 0 1 0; 1 0 1 0 1 0; 0 1 0 1 0 0; 0 0 1 0 1 1; 1 1 0 1 0 0; 0 0 0 1 0 0]; crd = [0 1; 1 1; 2 1; 0 2; 1 2; 2 2]; gplot (A, crd, "o-"); Which is hard to