vtools.functions.interpolate

Module for data interpolation using splines or interfaces unavailable in Pandas.

Functions

_ratsp1(x, y, p, q, y0, yn)	RATSP1 in Spath (1995)
example()
interpolate_to_index(df, dest)
monotonic_spline(ts, dest)	Interpolating a regular time series (rts) to a finer rts by rational histospline.
rhist(x, y, xnew, y0, yn, p, q)	Histopline for arrays with tension.
rhist_bound(x, y, xnew, y0, yn, p[, lbound, ...])	Numpy implementation of histospline with bounds Histopline for arrays with lower bound enforcement.
rhist_coef(x, y, y0, yn, p, q)	Routine that produces coefficients for the histospline
rhist_val(xnew, x, p, q, a, b, c)	Evaluate a histospline at new x points
rhistinterp(ts, dest[, p, lowbound, ...])	Interpolate a regular time series (rts) to a finer rts by rational histospline.
tridiagonal(a, b, c, d)	a is the lower band (with leading zero) b is the center diagonal (length == nrow) c is upper band (trailing zero) d is right hand side