Matlab & Octave Utilities

Simple utilities and helper M-files I keep on my Maltab & Octave PATHs. All of the codes work in both Matlab & Octave.

hist2d.m

Compute a bivariate histogram over a rectilinear grid.

plotFreqSpec.m

Plot samples & FFT of samples with linear & logarithmic scales

plotCurveFile.m

Read a columnar numeric file from disk, and plot an Y curve, X-Y parametric curve, or X-Y-Z surface.

runningOn.m

Return true if the code is running on the given platform (MATLAB, SciLab, Octave).

simplifyCurveEuc.m

Reduce a set of points so that adjacent points are not too close together in space.

sumByBlocks.m

Bust an array of samples into fixed size blocks, compute stats for each block, and return it all in a matrix. The columns of the matrix are mean, min, and max.

applyToRows.m & applyToCols.m

Apply a function to the rows or columns of a matrix. Reminiscent of, but far less elegant than, the R apply functions.

I use the script install.sh to copy these files into my Matlab & Octave paths.

-mitch

PS: Have Fun