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 | ;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'''. | ||
;Example: | ;Example: | ||
Revision as of 11:16, 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.
- Example
#matrix := eval init(100,10,0) conlog 'number of columns of $#matrix: $(eval ncol($#matrix))' // the attribute !ncol returns the same value: conlog 'number of columns of $#matrix: $#matrix[!ncol]'
- See also
- nrow
