Command Reference
:
Function Reference
:
Function Reference: C
@cilast
Matrix Column Statistics
Index of the last non-missing value in each column of a matrix.
Syntax:
@cilast
(
m
)
m
: matrix
Return: vector
Returns a vector containing the index (
i.e
, row number) of the last non-missing value of each column of the matrix
m
.
Examples
Let M2 be an
upper triangular matrix whose
elements below the main diagonal are NAs. In this case,
= @cilast(m2)
returns a column vector whose elements are the integers 1, 2, ...,
.
Cross-references
See also
@cfirst
,
@clast
, and
@cifirst
.
See also
@first
,
@last
,
@ifirst
, and
@ilast
.