Graphing And Tracing A Defined Stat Plot - Texas Instruments TI-89 Manual Book

Graphing and Tracing a Defined Stat Plot

Defining the
Viewing Window
Tip: „ Zoom is available
on the Y= Editor, Window
Editor, and Graph screen.
Changing the Graph
Format
Tracing a Stat Plot
Note: When a stat plot is
displayed, the Graph screen
does not automatically pan if
you trace off the left or right
side of the screen. However,
you can still press ¸ to
center the screen on the
trace cursor.
After entering the data points and defining the stat plots, you
can graph the selected plots by using the same methods you
used to graph a function from the Y= Editor (as described in
Chapter 6).
Stat plots are displayed on the current graph, and they use the
Window variables that are defined in the Window Editor.
Use ¥ $ to display the Window Editor. You can either:
¦
Enter appropriate values.
— or —
¦
from the „
Select
9:ZoomData
can use any zoom,
ZoomData sets the viewing window to
display all statistical data points.
For histograms and box plots, only
and are adjusted. If the top of a
xmax
histogram is not shown, trace the
histogram to find the value for
Press:
ƒ
9
— or —
¥ Í
TI-89
:
¥
TI-92 Plus: F
from the Y= Editor, Window Editor,
or Graph screen.
Then change the settings as
necessary.
From the Graph screen, press ... to trace a plot. The movement of
the trace cursor depends on the
Plot Type Description
Scatter or xyline Tracing begins at the first data point.
Tracing begins at the median. Press A to trace to
Box plot
Q1 and
The cursor moves from the top center of each bar,
Histogram
starting from the leftmost bar.
When you press C or D to move to another plot or
tracing moves to the current or beginning point on that plot (not to
the nearest pixel).
toolbar menu. (Although you
Zoom
is optimized for stat plots.)
ZoomData
xmin
.
ymax
.
Plot Type
. Press B to trace to
minX
Chapter 16: Statistics and Data Plots
Q3 and maxX .
function,
y(x)
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