StdData: StdData
In feng-li/flutils: Feng Li's utility functions

Standardize a vector or colums of a matrix

1	StdData(X, method)

`X`	"Numercial". The data to be standardized. "X" should be a numeric matrix or a vector. The standardization methods do _NOT_ apply to tho following situations: 1) there is only one row in the matrix. 2) some colums have constant values.
`method`	"Numerical". If "stdnorm", X will be standardized with mean zero and standard deviation 1. If "-1to1", X will be restricted to [-1, 1]. The "method" applies to each colums for a matrix or a vector.

A matrix or a vector depends on the input X

First: Thu Mar 4 13:50:30 CET 2010 Current: Sun Dec 21 04:24:52 EST 2014

Feng Li, Dept. of Statistics, Stockholm University, Sweden.

feng-li/flutils documentation built on Oct. 1, 2020, 9:09 p.m.