# indnv¶

## Purpose¶

Checks one numeric vector against another and returns the indices of the elements of the first vector in the second vector.

## Format¶

z = indnv(what, where)
Parameters
• what (Nx1 numeric vector) – contains the values to be found in vector where

• where (Mx1 numeric vector) – searched for matches to the values in what

Returns

z (Nx1 vector of integers) – the indices of the corresponding elements of what in where.

## Examples¶

// What elements to look for
what = { 8, 7, 3 };

// Vector to look in
where = { 2, 7, 8, 4, 3 };

// Find locations of what in where
z = indnv(what, where);

    3
z = 2
5


## Remarks¶

If no matches are found for any of the elements in what, then those elements in the returned vector are set to the GAUSS missing value code.

If there are duplicate elements in where, the index of the first match will be returned.