Reference Guide

Reserved Variables D-11
ZPAR
ZPAR is a variable in the current directory. It contains a list of zooming parameters used by the DRAW command
for all 2-D mathematical and statistical plots.
Parameter
(Command)
Description Default Value
h-factor Real number that specifies the horizontal zoom factor. 4
v-factor Real number that specifies the vertical zoom factor. 4
recenter flag 0 or 1 depending on whether the recenter at crosshairs
option was selected in the set zoom factors input form.
0
{ list } An empty list, or a copy of the last PPAR.
Use the set zoom factors input form ( ZFACT ) to modify ZPAR.
ΣDAT
ΣDAT is a variable in the current directory that contains either the current statistical matrix or the name of the
variable containing this matrix. This matrix contains the data used by the Statistics applications.
var
1
var
2
… var
m
x
11
x
21
… x
m1
x
12
x
22
… x
m2
x
1n
x
2n
… x
mn
Statistical Matrix for Variables 1 to m
You can designate a new current statistical matrix by entering new data, editing the current data, or selecting another
matrix.
The command CLΣ clears the current statistical matrix.