Chapter 11 Times Series 435
5 Click the General tab and click the Columns option button to dis-
play the statistics by columns rather than by rows.
6 Click the Input button and select Fahrenheit from the list of range
names. Click OK.
Now you’ll break down the statistics by decade.
7 Click the By button and select Decade from the range names list.
Click OK.
8 Click the Output button and direct the output to a new worksheet
named Temps by Decade.
9 Click OK.
Excel generates the table shown in Figure 11-3.
Figure 11-3
Temperature
statistics by
decade
Now that you’ve calculated the per-decade averages create a scatter plot
of the values.
To create a scatter plot of the decade averages:
1 Select the nonadjacent cell range B3:B15;D3:D15 from the table of
decade statistics.
2 Click the Line button from the Charts group on the Insert tab and
click the fi rst chart subtype (Line).
3 Move the line chart to a new chart sheet named Decades Chart.