H I N T In order to access the CORR and RELERR variables after

you plot a set of statistics, you must press to access

the numeric view and then to display the correlation values. The values are stored in the variables when you access the Symbolic view.

Setting up the plot (Plot setup view)

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 (Plot view setup)” on page 2-5.Settings unique to the Statistics aplet are as follows:

Plot type (1VAR) STATPLOT enables you to specify either a histogram or a box-and-whisker plot for one-variable statistics (when is set). Press to change the highlighted setting

Histogram width HWIDTH enables you to specify the width of a histogram bar. This determines how many bars will fit in the display, as well as how the data is distributed (how many values each bar represents).

Histogram range

Plotting mark (2VAR)

Connected points (2VAR)

HRNG enables you to specify the range of values for a set of histogram bars. The range runs from the left edge of the leftmost bar to the right edge of the rightmost bar. You can limit the range to exclude any values you suspect are outliers.

S1MARK through S5MARK enables you to specify one of

five symbols to use to plot each data set. Press to change the highlighted setting.

CONNECT (on the second page), when checkmarked, connects the data points as they are plotted. The resulting line is not the regression curve. The order of plotting is according to the ascending order of independent values. 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).

Trouble-shooting a plot

If you have problems plotting, check that you have the following:

8-18

Statistics aplet