Hi,
I am using Stata 8 intercooled for Windows.
I want to make a graph showing growth in reading levels between the Fall
term and Spring term for 22 students. The data look like this:
student fall spring
1 4.5 5.25
2 3.5 5.25
3 7.5 7.5
4 5.75 5.75
5 6.5 7.5
6 6.25 7.5
7 4.5 5.25
8 6.5 7.25
9 4.75 5.5
10 4.5 5.25
11 6.25 6.25
12 4.5 5.25
13 4.5 5.25
14 2.25 3.25
15 6.5 7.25
16 4.75 5.25
17 4.75 5.25
18 6.5 6.75
19 5.75 5.75
20 4.75 5.75
21 4.5 4.75
22 4.5 5.5
I would like one graph, with 22 lines, one per student. The x axis would
be term, with two values, Fall and Spring. The y axis would be reading
level. So the graph would show a line connecting Fall and Spring reading
levels for each student.
I have spent two hours trying to make this graph, using the Stata graphics
manual and "A Visual Guide to Stata Graphics."
I re-shaped the data to have 2 records per student, one for Fall and one
for Spring. I then tried a connected line graph, but the graph connected
lines _across_ students, not just within students.
I also re-shaped the data so that the scores for each student were a
separate variable (i.e., two records, one for Fall and one for Spring, with
22 variables, each showing the scores for an individual student). I then
tried "twoway (line stu1-stu22 Term)", but it looks like only the first 15
lines were drawn, I suppose due to a limit in how many variables can be
included in one graph.
Can someone help?
Thank you,
Erik
erik_beecroft@abtassoc.com
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