Programmer Guide/Command Reference/EVAL/sample: Difference between revisions
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(Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Creates a random sample of a set. ;Usage: '''<code>sample(''n'' , ''m'')</code>''' :;''n'': the number of elements :;''m'': the size of the rand…') |
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{{DISPLAYTITLE:{{SUBPAGENAME}}}} | {{DISPLAYTITLE:{{SUBPAGENAME}}}} | ||
Creates a random sample of a set. | Creates a random sample (subset) of a set. | ||
;Usage: '''<code>sample(''n'' , ''m'')</code>''' | ;Usage: '''<code>sample(''n'' , ''m'')</code>''' | ||
Revision as of 16:49, 8 April 2011
Creates a random sample (subset) of a set.
- Usage
sample(n , m)- n
- the number of elements
- m
- the size of the random sample;
0 < m < n
- Result
- A vector with length m, containing the indices of the selected elements of the set.
- It is assumed that the set is indexed from 0 to n-1 (i.e. the number of elements). The result vector can be applied as an index list on the set to extract the corresponding elements.
