HP 38g Graphing Calculator - Manual (Page 128)

Plot Settings
Plot Type
(IVAR)
Histogram
Width
Histogram
Range
The Plot Setup view (■ [SETUP-PLOT]) sets most of the
same plotting parameters as it does for the other built-in
aplets. See “Setting Up the Plot” in chapter 3. Settings unique
to the Statistics aplet are:
STATPLOT specifies either a histogram or a box-and-whisker
plot for one-variable statistics (when {{IVAR b }} is set).Use
{{CHOOS}} to change the highlighted setting
HWIDTH specifies the width of a histogram bar (a IVAR
plot).This determines how many bars will fit in the display, as
well as how the data are distributed (how many values each
bar represents).
HRNG specifies the range of values for a set of histogram bars
(a IVAR plot). The range runs from the left edge of the
leftmost bar to the right edge of the rightmost bar.
Plotting Mark SI MARK through S5MARK specify one of five symbols to use
(2VAR) to plot each data set. Use {{CHOOS}} to change the highlighted
setting.
Trouble-shooting
If you have problems plotting, check that you have the
following:
• Data values entered in columns of C variables (Numeric
view).
• The correct {{IVAR b }} or {{2 varb }} menu label on
(Numeric view).
• The correct Fit (regression model), if the data are two-
variable ({{2VAR b }}). Y ou can change the Fit (as SI FIT
through S5F1T) in Symbolic Setup.
• A data set defined as specific data columns (Symbolic
view).
• Only the data sets to compute or plot are checkmarked
(Symbolic view).
• The correct plotting range. Try using ■ {VIEWS} Auto
Scale (instead of [ plot |), or adjust the plotting
parameters (in Plot Setup) for the ranges of the axes and
the width of histogram bars (HWIDTH).
5-22 Statistics