150
Chapter 8: Statistics & Regression Calculations
15. Select
9 Stat and press
E
.
You can directly press
9
at step 13 to select
9 Stat.
The histogram will appear on the display.
When you draw the graph using the automatic statistics zoom
function (
9 Stat), the division number is automatically set to
X
max
–
X
min
X
scl
(default value: 10). If you wish to show the graph
hour by hour, change the value in the WINDOW menu.
1. Press
W
.
Window (Rect) setting menu
will appear.
2. Enter the values as shown in
the diagram to the right.
Ymax is determined by the maximum access number (253 at
20:00 on Sunday).
3. Press
G
.
You can compare up to 3
statistical data by setting
PLOT2/PLOT3 to on.
1. Press
[
A
E
and move the cursor to GRAPH.
2. Press
[
again.
3. Press
B
and
1
(broken line with circle dots).
4. Press
G
.
The histogram is now
changed to a broken line graph.
5. Press
@
q
to clear the screen.
6. Press
[
and select
B PLOT2.
7. Set as follows.
PLOT: on, DATA: X, ListX: L1, and Freq: L3.
Set the WINDOW
settings
Set the statistical
plotting of PLOT1
(Sunday data) to
a broken line
Compare the
access rates
on Sunday and
Monday