Texas Instruments TI-73 EXPLORER 用户手册

     Chapter 6: Statistical Plots

7306ENG.DOC   Statistical Plots and Analyses   Julie Hewlett   Revised: 05/29/98 3:52 PM   Printed: 05/19/99 9:00 AM

Page 114 of 20

 

If you press * to display all selected stat plots, sometimes

you see a blank screen. Try adjusting your viewing window.

The easiest way to do this is with the ( 

command. This adjusts the viewing window automatically so

that all points of all turned on stat plots are visible. To adjust

window values manually, press '.
In addition, the calculator automatically selects the 

option (- g) for Pictograph, Bar graph, Pie chart stat

plots. However, any other selected options on the - g

screen still apply to stat plots (as they do with function

graphs).
For more information on adjusting 

 values and

formatting the Graph screen, see Chapter 9: Function

Graphing.

 

Press * to display a stat plot. (Pressing * also

displays any 

 functions that are defined and selected.) Once

you have a plot displayed, you can press ) and use " and

! to move from point to point.
If you have more than one plot turned on at the same time, you

can trace all the points of each plot. Use $ and # to move

from plot to plot.

 

The following examples assume that all 

 functions are

deselected (turned off) (- } 

 

).

 

Scatter Plot   Ô

 

 and xyLine Plot   Ó

Scatter plots (Ô) and xyLine plots (Ó) are especially useful

for plotting data over a period of time to indicate trends. An

xyLine plot (Ó) functions exactly like the Scatter plot, except

that it connects the data points with a line.