ROW LABEL

ROWLABEL (LET)

Subcommand under LET

Converts previously read character data to row labels.

Dataplot can now read character data using the
SET CONVERT CHARACTER ON

command. This command stores the character fields in the file "dpchzf.dat".

The two primary uses of character data are:

1. Provide a row identifier for the data.

2. Define a group (or factor) variable. For example, we can identify sex by coding males as M and females as F.

The ROWLABEL command is used to convert one of the previosuly read character variables to a row label.

Once a row label has been defined, you can use the

CHARACTER ROWLABEL

command to label plot points. Additional uses for row labels are anticipated in future releases of Dataplot.

LET ROWLABEL = <ix>
where <ix> specifies the name of the character variable in the file dpzchf.dat.

The character variable is originally created with a READ command where the SET CONVERT CHARACTER ON was entered prior to the READ.

SET CONVERT CHARACTER ON
READ TEST.DAT Y X IX
LET IG = GROUP LABEL IX

Row labels can be up to 24 characters long.

Row labels can also be defined using the READ ROW LABELS command.

None

None

READ	= Carries out a column-wise input of data.
CONVERT CHARACTER	= Specify how Dataplot will handle character data.
CHARACTER CODE	= Converts character data to a coded numeric variable.
GROUP LABELS	= Define row labels from character data.

Input/Output

2004/1

 
set convert character on
skip 25
read draft69c.dat rank day month
.
let rowlabel = month
character  rowlabel
let xcode = character code month
.
xlimits 1 12
xtic offset 1 1
.
plot rank xcode