Is it possible to combine twoway binscatter?

[Ale Dea]

Is it possible to superimpose binscatter plot?

I would usually do this with scatter in the following way

sysuse auto, clear gen rep78_2 = rep78 + cond(foreign, 0.1, -0.1) scatter mpg rep78_2 if foreign, ms(Oh) mcolor(red) /// || scatter mpg rep78_2 if !foreign, ms(X) mcolor(blue) /// || lfit mpg rep78 if foreign, lcolor(red) /// || lfit mpg rep78 if !foreign, lcolor(blue) /// ytitle("`: var label mpg'") legend(order(1 "Foreign" 2 "Domestic"))
But the twoway command or || do not seem to work with the binscatter plot command

Many thanks

[Ale Dea]

If I try this,

twoway binscatter2 ln_int_c ln_int_p16 || binscatter2 ln_int_c ln_int_p5
binscatter2 is not a twoway plot type

[Nick Cox]

binscatter is from SSC. I've no idea what binscatter2 is. Please note our request to explain the provenance of community-contributed commands.

binscatter can't be combined with anything else to my knowledge. It's not a twoway type, and doesn't have a direct twoway analogue.

I don't know what you're missing, but stringing twoway commands together to do it is likely to work better than your rewriting binscatter.

[Ale Dea]

Thank you Nick, what do you mean by stringing twoway commands together to do it is likely to work better? Could you please provide an example?

binscatter2 is an update of binscatter

[Maarten Buis]

You need to tell us where you got binscatter2, and we need access to it in order to help you. If you have a program we don't have access to, then how can you expect us to tell you anything that would be helpful to you?

[Nick Cox]

"stringing twoway commands together" is exactly what your code in #1 exemplifies. The || syntax is typical.

[Ale Dea]

Thanks for your help

I have found binscatter2 here https://github.com/mdroste/stata-binscatter2

Also the || syntax does not work:

binscatter ln_int_c ln_int_p16 || binscatter ln_int_c ln_int_p5
| invalid name
r(198);

[Nick Cox]

I didn't recommend that. As said, the || syntax applies to twoway commands and binscatter2 like binscatter is not a twoway command.

A twoway command is as documented at

help graph twoway

and while many graph commands use graph twoway internally, that doesn't make them twoway commands in Stata's sense. The terminology may seem confusing but it is Stata's and documenred.

Superimposing the results of two binscatter (or presumably binscatter2) commands can't be done directly to my knowledge, You need to bin each variable yourself, do the calculations and then draw your own graph.

[Ale Dea]

I have found a solution to superimpose the results of two binscatter. I will post an example here for others who may encounter a similar problem

clear*

sysuse auto
binscatter mpg weight, n(10) savedata(binned) replace
clear
do binned
save binned,replace

sysuse auto
binscatter mpg price, n(10) savedata(binned2) replace
clear
do binned2
save binned2,replace

sysuse auto,clear
append using binned, gen(binned)
append using binned2, gen(binned2)



twoway lfit mpg weight if binned == 1 ,sort lp(dash) lc(black) ///
|| scatter mpg weight if binned == 1 , mc(blue) || ///
lfit mpg price if binned2 == 1 ,sort lp(dash) lc(black) ///
|| scatter mpg price if binned2 == 1 , mc(blue)

[Maarten Buis]

Thanks for the information on the origin of binscatter2 and for closing the thread.