Chapter 12: Statistics
197
R
2
is computed and stored for these regression models.
The
r
and
r
2
that are computed for
LnReg
,
ExpReg
, and
PwrReg
are based on the linearly
transformed data. For example, for
ExpReg
(y=ab^x),
r
and
r
2
are computed on ln y=ln a+x(ln b).
By default, these values are not displayed with the results of a regression model when you
execute it. However, you can set the diagnostics display mode by executing the
DiagnosticOn
or
DiagnosticOff
instruction. Each instruction is in the CATALOG (Chapter 15).
•
To turn diagnostics on or off from the mode screen, select
On
or
Off
for
StatDiagnostics
. The
default is
Off
.
•
To set
DiagnosticOn
or
DiagnosticOff
from the home screen, press
y
N
, and then
select the instruction for the mode you want. The instruction is pasted to the home screen.
Press
Í
to set the mode.
When
DiagnosticOn
is set, diagnostics are displayed with the results when you execute a
regression model.
When
DiagnosticOff
is set, diagnostics are not displayed with the results when you execute a
regression model.
QuadReg
CubicReg
QuartReg
MathPrint™
Classic
MathPrint™
Classic
