MATRIX DELETE ROW

MATRIX DELETE ROW (LET)

Let Subcommand

Delete a row from an existing matrix.

It is sometimes convenient to delete an observaton (i.e., a row) to an already existing data matrix. This command allows you to do that in a simple way.

LET <mat2> = MATRIX DELETE ROW <mat1> <rowid>
where <mat1> is the original data matrix;
            <rowid> is a number or parameter that specifies which row of the matrix is to be deleted;
and where <mat2> is the resulting matrix.

Note that <mat2> is typically the same as <mat1>

LET M = MATRIX DELETE ROW M X

Matrices are created with either the READ MATRIX command or the MATRIX DEFINITION command. Enter HELP MATRIX DEFINITION and HELP READ MATRIX for details.

None

None

READ MATRIX	= Read a matrix.
MATRIX COLUMN DIMENSION	= Dimension maximum number of columns for Dataplot matrices.
MATRIX ADD ROW	= Add a row to a matrix.
MATRIX ROW	= Copy a row of a matrix to a column.

Multivariate Analysis

1998/8

READ MATRIX M
1 2 3
4 5 6
7 8 9
END OF DATA
LET M = MATRIX DELETE ROW M 2
PRINT M