<<prev file | next file >>    view single page | view frames    summary: fields | routine    details: routine

Matrix/

different.pro

calculate the different elements of 2 matrix of positive whole numbers.

topdifferent Calculation

result = different(a, b)

Return value

tableau

Parameters

a        in required

arrays of positive integers, which need not be sorted. Duplicate elements are ignored, as they have no effect on the result

b        in required

see a

Examples

a = [2,4,6,8] b = [6,1,3,2] different(a,b) = [ 4, 8] ; Elements in A but not in B

Version history

Version

$Id: different.pro 157 2006-08-21 09:01:50Z navarro $

History

http://www.dfanning.com/tips/set_operations.html

Known issues

Restrictions

The empty set is denoted by an array with the first element equal to -1. These functions will not be efficient on sparse sets with wide ranges, as they trade memory for efficiency. The HISTOGRAM function is used, which creates arrays of size equal to the range of the resulting set.

Statistics

McCabe cyclic 3
McCabe essential 1
McCabe modular design 1
Produced by IDLdoc 2.0.