Programmer Guide/Command Reference/EVAL/imax: Difference between revisions

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=====imax=====
Returns the index of largest value of argument <var>x</var>.


The index of the maximum element in the vector <var>x</var>.
;Usage: '''<code>imax(<var>x</var>)</code>'''


{|
;Result: The result is the index of the maximum value of <var>x</var>.
|-
::*if <var>x</var> is a scalar: the result is '''0'''
|Usage:
::*if <var>x</var> is a vector: the result is the index (row) of the minimum
|imax(x)
::*if <var>x</var> is a matrix: the result is the element index ''i'' of the maximum; the column ''c'' and the row ''r'' can be computed as follows: <code>''c'' := int ''i''/''x''[!nrow]</code>, <code>r := int ''i''%''x''[!nrow]</code>
|-
 
|Result type:
;See also: [[Programmer_Guide/Command_Reference/EVAL/max|max]], [[Programmer_Guide/Command_Reference/EVAL/absmax|absmax]], [[Programmer_Guide/Command_Reference/EVAL/imin|imin]],
|scalar
 
|}
[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]

Revision as of 10:38, 4 April 2011

Returns the index of largest value of argument x.

Usage
imax(x)
Result
The result is the index of the maximum value of x.
  • if x is a scalar: the result is 0
  • if x is a vector: the result is the index (row) of the minimum
  • if x is a matrix: the result is the element index i of the maximum; the column c and the row r can be computed as follows: c := int i/x[!nrow], r := int i%x[!nrow]
See also
max, absmax, imin,

<function list>

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