Programmer Guide/Command Reference/EVAL/ncol: Difference between revisions
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;Usage: '''<code>ncol(<var>x</var>)</code>''' | ;Usage: '''<code>ncol(<var>x</var>)</code>''' | ||
;Result: The result of this function is the number of columns of <var>x</var>. If <var>x</var> is a scalar or a vector, the result is '''1'''. The function '''cols(''x'') | ;Result: The result of this function is the number of columns of <var>x</var>. If <var>x</var> is a scalar or a vector, the result is '''1'''. The function '''cols(''x'')''' can be used as alias for '''ncol'''. | ||
;Example:<pre> | |||
#matrix := eval init(100,10,0) | |||
conlog 'number of columns of $#matrix: $(eval ncol($#matrix)' | |||
</pre> | |||
;See also: [[Programmer_Guide/Command_Reference/EVAL/nrow|nrow]] | ;See also: [[Programmer_Guide/Command_Reference/EVAL/nrow|nrow]] | ||
[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | [[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]] | ||
Revision as of 10:06, 4 April 2011
Returns the number of columns of the argument x.
- Usage
ncol(x)
- Result
- The result of this function is the number of columns of x. If x is a scalar or a vector, the result is 1. The function cols(x) can be used as alias for ncol.
- Example
- matrix := eval init(100,10,0)
conlog 'number of columns of $#matrix: $(eval ncol($#matrix)'
- See also
- nrow
