fillmthd()

Description:

Fill missing values according to the specified method.

Syntax:

A.fillmthd(m)

Note:

External library function (See External Library Guide).

The function fills missing values in vector/ matrix A according to the specified method.

There are four methods for filling missing values:

1. Or “previous”: The previous non-missing value;

2. Or “next”: The next non-missing value;

3. Or “nearest”: The nearest non-missing value;

4. Or “linear”: The neighboring non-missing value’s linear interpolation – only a numeric value is valid; the double type (with the decimal point) is required for data entry.

Parameter:

Return value:

Sequence

Example: