Operation Manual

Statistics 12-21
8212STAT.DOC TI-82, Chapter, English Bob Fedorisko Revised: 02/09/01 9:23 AM Printed: 02/09/01
12:42 PM Page 21 of 22
Turning Plots Off or On
PlotsOff
and
PlotsOn
allow you to turn stat plots on or off from the Home
screen or a program. Used without
plot#
, they turn all plots on or all plots
off. Used with
plot#
, they turn specific plots on or off.
PlotsOff
or
PlotsOn
PlotsOff
plot#
,
plot#
,
. . .
PlotsOn
plot#
For example,
PlotsOff:PlotsOn 3
turns all plots off and then turns
Plot3
on.
Defining the Viewing WINDOW
Stat plots are displayed on the current graph. You may define the viewing
WINDOW
by pressing
p
and then entering values for the
WINDOW
variables.
ZoomStat
redefines the viewing
WINDOW
so that all statistical data points
are displayed. For one-variable plots (
Histogram
and
Box plot
), only
Xmin
and
Xmax
are adjusted. If the top of the histogram is not shown, use
TRACE
to determine the value for
Ymax
.
Tracing a Stat Plot
When you
TRACE
a
Scatter
plot or
xyLine
, tracing begins at the first
element in the lists.
When you
TRACE
a
Box
plot, tracing begins at
Med
(the median). Press
|
to trace to
Q
1
and
minX
. Press
~
to trace to
Q
3
and
maxX
.
When you
TRACE
a
Histogram
, the cursor moves from the top center of
each column.
When you press
}
or
†
to move to another plot or
Y=
function, tracing
moves to the current or beginning point on that plot (not the nearest pixel).