Multiple Line Graph of Mean

[Elyse Cottrell]

Hello!

I'm very new to Stata (I just started using it yesterday) and I'm trying to figure out how to do a multiple line graph of the Mean of a variable.

I want the y-axis to be DRS (shown on a scale of 0 to 14) and the x-axis to be data_point (which is 4 time points)

and to plot the mean DRS score using 6 lines from the LTCH and Sex_AA2 variables:

Location 1 Male
Location 1 Female
Location 2 Male
Location 2 Female
Location 3 Male
Location 3 Female



I created some fake cases to show you my data:

* Example generated by -dataex-. To install: ssc install dataex
clear
input float(ID data_point gender LTCH DRS)
1 1 0 1  3
1 2 0 1  2
1 3 0 1  1
1 4 0 1  3
2 1 1 2  3
2 2 1 2  4
2 3 1 2  3
2 4 1 2  2
3 1 1 3  3
3 2 1 3  7
3 3 1 3 12
3 4 1 3 11
4 1 0 1  5
4 2 0 1  4
4 3 0 1  2
4 4 0 1  3
5 1 1 3  5
5 2 1 3  4
5 3 1 3  2
5 4 1 3  1
end
label values data_point DataPoint
label def DataPoint 1 "Pre-Move", modify
label def DataPoint 2 "Move", modify
label def DataPoint 3 "3 Month", modify
label def DataPoint 4 "6 Month", modify
label values gender Gender
label def Gender 0 "Male", modify
label def Gender 1 "Female", modify
label values LTCH LTCH
label def LTCH 1 "Location 1", modify
label def LTCH 2 "Location 2", modify
label def LTCH 3 "Location 3", modify

Any help is greatly appreciated.

[Andrew Musau]

xtset ID data_point
xtline DRS, overlay scheme(s1color)

or excluding the legend

bys ID (data_point): gen lastob=_n==_N
xtline DRS, overlay scheme(s1color) leg(off) addplot(scatter DRS data_point if lastob , mlab(ID) mcolor(none)) xlab(1(1)4.3)

You cannot really separate IDs 1 and 4 with method #2.