5.15. statsmodels.sandbox.utils_old

5.15.1. Functions

ECDF(values)	Return the ECDF of an array as a step function.
clean0(matrix)	Erase columns of zeros: can save some time in pseudoinverse.
fullrank(X[, r])	Return a matrix whose column span is the same as X.
mad(a[, c, axis])	Median Absolute Deviation:
monotone_fn_inverter(fn, x[, vectorized])	Given a monotone function x (no checking is done to verify monotonicity) and a set of x values, return an linearly interpolated approximation to its inverse from its values on x.
rank(X[, cond])	Return the rank of a matrix X based on its generalized inverse, not the SVD.
recipr(X)	Return the reciprocal of an array, setting all entries less than or equal to 0 to 0.
recipr0(X)	Return the reciprocal of an array, setting all entries equal to 0 as 0.

5.15.2. Classes

StepFunction(x, y[, ival, sorted])

A basic step function: values at the ends are handled in the simplest way possible: everything to the left of x[0] is set to ival; everything to the right of x[-1] is set to y[-1].