CODEWITHSUNDEEP
graphstata
Hamham
Hamham

Reputation: 33

How can one display multiple overlaid lines?

I'm working in Stata 13.1. Is there any way to plot 3 different predicted_responses (with different colour) for every hour (24,48,72), in the same plot? With my code I receive 3 graphs but I want only one.

My code:

gr7 predicted_response Response Concentration if Hours==24, xlab ylab c(l.) s(iO)
gr7 predicted_response Response Concentration if Hours==48, xlab ylab c(l.) s(iO)
gr7 predicted_response Response Concentration if Hours==72, xlab ylab c(l.) s(iO)

Upvotes: 0

Views: 573

Answers (2)

Nick Cox
Nick Cox

Reputation: 37208

This is a fairly literal translation, with some extra bells and whistles.

line predicted_response Concentration if Hours==24, lc(red) sort 
|| line predicted_response Concentration if Hours==48, lc(blue) sort 
|| line predicted_response Concentration if Hours==72, lc(black) sort 
|| scatter Response Concentration if Hours==24, mc(red) 
|| scatter Response Concentration if Hours==48, mc(blue)
|| scatter Response Concentration if Hours==72, mc(black) 
legend(order(4 "24 hours" 5 "48 hours" 6 "72 hours")) 
ytitle(Observed and predicted response)

Note also the separate command and what it allows.

Upvotes: 2

Bicep
Bicep

Reputation: 1103

twoway scatter x y if z == 1, c(L) || ///
       scatter x y if z == 2, c(L) || ///
       scatter x y if z == 3, c(L) || ///

gr7 is not compatible with twoway but you should be able to use scatter or line instead.

Note: gr7 is an outdated Stata command that you shouldn't rely on; learn to use the standard graphing commands; see help graph.

Upvotes: 0

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