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st: AW: RE: AW: RE: line plot
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: AW: RE: AW: RE: line plot
Date
Mon, 10 May 2010 18:49:41 +0200
<>
"... after -collapse- you need to retrieve your original dataset to do
further analyses with it in the same session."
Which can be done elegantly via -preserve-/-restore-, as has been mentioned
recently on the list.
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Nick Cox
Gesendet: Montag, 10. Mai 2010 17:04
An: [email protected]
Betreff: st: RE: AW: RE: line plot
-collapse- as mentioned by Martin Weiss is fine too. The difference is
that after -collapse- you need to retrieve your original dataset to do
further analyses with it in the same session.
Nick
[email protected]
Mareike
Thank you Nick for your help. Using egen first solved the problem.
Nick Cox
There is a difference of principle here.
-graph bar-, -graph dot- and -graph box- are reduction commands that
typically show summary statistics derived from the data, rather the data
themselves. (There are exceptions, flagged by -asis-.)
On the other hand, most -twoway- commands, and those based on them, how
the data directly. (There are exceptions, such as -histogram-.) Thus,
for the most part, you need to do any reductions beforehand.
Use -egen, total()- to calculate the sums beforehand. Note also -egen,
tag()- to tag just one observation of each kind, in your case, one
observation for each year.
Mareike
I'm working with panel data and I'm trying to plot the yearly sum of
one variable for all countries over time. I was able to create a bar
diagram for that purpose by using the command: graph bar (sum)
variable, over(year). But actually I would prefer to present the
numbers in form of a line plot: But all the commands I could think of
(e.g. tsline, line, twoway connected, etc.) do not allow the
sum-option, as far as I understand them correctly. It would be great if
anybody of you would get up with an idea!?
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