Package pype :: Module vectorops

Module vectorops

Simple vector operations

Implements a bunch of common but useful vector operations using Numeric (if possible). If Numeric's not available, tries to fall back to (slower) raw-python.

Author -- James A. Mazer (mazerj@gmail.com)

Functions

find(boolvec)
Find indices of all TRUE elements in boolvec.

source code

sem(v, sig=None)
Compute standard error of the mean of vector.

source code

zeros(v)
Count number of zero entries in vector.

source code

smooth_boxcar(v, kn=1)
Smooth vector using a boxcar (square) filter (ie, running average), where kn=1 is a 3pt average, kn=2 is a 5pt average etc..

source code

decimate(v, n)
Simple decimatation (ie, downsampling) vector by n. No effort to be smart about this -- integer decimation only!

source code

sparseness(v)
Compute (Tove & Rolls) sparseness of vector.

source code

nanround(n, digits=0)

source code

Variables
	mean = `np.mean`
	std = `np.std`
	diff = `np.diff`

Function Details

find(boolvec)

source code

Find indices of all TRUE elements in boolvec.

You can use like this:

take(x, find(greater(x, 0)))

to select all elements of x greater than zero..