Trouble-Shooting A Plot; Exploring The Graph - HP 40gs User Manual

hp40g+.book Page 19 Friday, December 9, 2005 1:03 AM

Trouble-shooting a plot

Exploring the graph

Statistics aplet's PLOT view keys
Statistics aplet
For instance, the data set (1,1), (3,9), (4,16), (2,4) would
be plotted and traced in the order (1,1), (2,4), (3,9),
(4,16).
If you have problems plotting, check that you have the
following:
•
The correct or
view).
•
The correct fit (regression model), if the data set is
two-variable.
•
Only the data sets to compute or plot are
checkmarked (Symbolic view).
•
The correct plotting range. Try using
Scale (instead of
parameters (in Plot Setup) for the ranges of the axes
and the width of histogram bars (HWIDTH).
In mode, ensure that both paired columns contain
data, and that they are the same length.
In mode, ensure that a paired column of frequency
values is the same length as the data column that it refers
to.
The Plot view has menu keys for zooming, tracing, and
coordinate display. There are also scaling options under
. These options are described in"Exploring the
graph" on page 2-7.
Key Meaning
Erases the plot.
CLEAR
Offers additional pre-defined views
for splitting the screen, overlaying
plots, and autoscaling the axes.
Moves cursor to far left or far right.
menu label on (Numeric
Auto
), or adjust the plotting
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