Command Reference
:
Function Reference
:
Function Reference: M
@mnas
Rolling (Moving) Statistics
Trailing moving missing observations.
n
-period trailing number of missing observations, ignoring NAs.
Syntax:
@mnas
(
x, n)
x
: series, alpha
n
integer, series
Return: series
For each observation
and integer
, count the number of missing (NA) observations in the current and previous
observations of the series,
Equivalent to @movnas.
Examples
show @mnas(x, 12)
produces a linked series of NA counts based on a 12-period moving window over the series
x
.
Cross-references
See also
@mobs
.