Adjust space between plots in "twoway ...., by(group)"

[Jay Euijung Lee]

I created two scatterplots and plotted them side by side, using
"twoway (scatter y x), by(binary_group_var)"

The resulting graph looks like the first figure in https://stats.idre.ucla.edu/stata/mo...atter-combine/, which is copied here for convenience.



I'd like to know how to modify the command above to adjust the spacing between the two scatterplots. Specifically, I want to widen the distance between the two plots.

Thank you.

[Shreya Dutt]

I also have the same question. Is there any help available on this issue?

[Nick Cox]

Documented suboptions compact and imargin() at

help by option 

* also 
help marginstyle

Examples:

. sysuse auto, clear
(1978 automobile data)

. scatter mpg weight, by(foreign)

.. scatter mpg weight, by(foreign, imargin(large))

. scatter mpg weight, by(foreign, imargin(zero))

[Shreya Dutt]

Thanks Nick. I am getting an error when trying to do this with twoway. Code and error below.

mylabels 0(0.02)0.08, format(%04.3f) clean local(labels)
twoway (histogram speed if winter_2020==1, by(cityname_corrected, note("") imargin(large)) yla(`labels') color(blue%40) subtitle(, fcolor(white) lstyle(none))) ///        
       (histogram speed if winter_2020==0, by(cityname_corrected, note("") imargin(large)) yla(`labels') color(yellow%60) subtitle(, fcolor(white) lstyle(none))), ///   
       legend(order(1 "Jan to March 2020" 2 "April to June 2020" ) region(lstyle(none))) ysize(5)

Error:

option imargin() not allowed
r(198);

[Nick Cox]

There is no data example here, so your code cannot be run, but I can reproduce the error with the command commented out below and fix it with the following command.

I think graph is just confused about what you want.

mylabels is from SSC, as you are asked to explain, but irrelevant here,

It's always a good idea to reduce problematic code to a minimal reproducible example, as is flagged elsewhere: https://stackoverflow.com/help/minim...ucible-example

sysuse auto, clear 

* twoway (histogram mpg if rep78 <= 3, by(foreign, note("") imargin(large))) ///        
       (histogram mpg if rep78 > 3,  by(foreign, note("") imargin(large)))
         
 twoway (histogram mpg if rep78 <= 3, by(foreign, note("") imargin(large))) ///        
       (histogram mpg if rep78 > 3)

[Ahmed Adib]

There is no data example here, so your code cannot be run, but I can reproduce the error with the command commented out below and fix it with the following command.

I think graph is just confused about what you want.

mylabels is from SSC, as you are asked to explain, but irrelevant here,

It's always a good idea to reduce problematic code to a minimal reproducible example, as is flagged elsewhere: https://stackoverflow.com/help/minim...ucible-example

sysuse auto, clear

* twoway (histogram mpg if rep78 <= 3, by(foreign, note("") imargin(large))) ///
(histogram mpg if rep78 > 3, by(foreign, note("") imargin(large)))

twoway (histogram mpg if rep78 <= 3, by(foreign, note("") imargin(large))) ///
(histogram mpg if rep78 > 3)

Thank you so much!