mglib

Personal IDL library for M. Galloy

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analysis/

mg_sign.pro


Routines

top mg_sign

result = mg_sign(x)

Return the sign of the values of an array: -1 for negative values, 0 for 0 values, 1 for positive values. The dimensions of the result are the same as the input array.

Return value

intarr

Parameters

x in required type=numeric array

input array

Examples

For example, the following finds the sign of the values in a simple array:

IDL> print, mg_sign([-3.5, 0., 4.7]) -1 0 1

File attributes

Modification date: Wed May 14 15:07:14 2014
Lines: 4
Docformat: rst rst
Personal library of Michael Galloy
Contact me if you have enhancement requests or bug fixes.