twoway graph combine sharing same y-axis

[suganthiny kumarasamy]

Dear Statalist,
I am trying to combine towway graph , all these graph sharing the same y axis
but when i combine it's still give 3 y-axis, i just want one y-axis, i am using ycommon but still have
each graph have y-axis , i just want one y-axis. I am using example data.
I install dataex in my stata 14.1 version but when i copy and past i did not have gray box.

Thanks a lot

code:

use http://www.ats.ucla.edu/stat/stata/webbooks/reg/elemapi

pwcorr api00 ell, sig
graph twoway (lfitci api00 ell) ///
(scatter api00 ell) ///
, ytitle("api00") ///
legend(region(lwidth(none)) ring(0) pos(5) order(2 "linear fit" 1 "95% CI")) ///
text(900 60 "corr=-0.76" "p-value=0.00",size(small))

graph save "api00_ell.gph", replace

pwcorr api00 meals, sig
graph twoway (lfitci api00 meals) ///
(scatter api00 meals) ///
, ytitle("api00") ///
legend(region(lwidth(none)) ring(0) pos(5) order(2 "linear fit" 1 "95% CI")) ///
text(900 80 "corr=-0.82" "p-value=0.00",size(small))

graph save "api00_meals.gph", replace

pwcorr api00 mobility, sig
graph twoway (lfitci api00 mobility) ///
(scatter api00 mobility) ///
, ytitle("api00") ///
legend(region(lwidth(none)) ring(0) pos(5) order(2 "linear fit" 1 "95% CI")) ///
text(900 40 "corr=-0.21" "p-value=0.00",size(small))

graph save "api00_mobility.gph", replace


graph combine api00_ell.gph api00_meals.gph api00_mobility.gph, ///
ycommon col(3) ///
graphregion(color(white))

[Roman Mostazir]

I am trying to combine towway graph , all these graph sharing the same y axis

They are not sharing same axis. They have same scales but you have distinct commands for distinct three graphs thus three axis.

i just want one y-axis, i am using ycommon but still have
each graph have y-axis , i just want one y-axis.

If you want only one axis and all plots overlayed, that may not look as what you want. However the commands for overlaying will be the following. I ignored the texts and customization, which you can do as you want but you will get one y-axis.

graph twoway (lfitci api00 ell) || ///
            (scatter api00 ell) || ///
            (lfitci api00 meals)|| ///
            (scatter api00 meals) || ///
            (lfitci api00 mobility) ///
            (scatter api00 mobility)

Dear Statalist,
i am using ycommon but still have each graph have y-axis , i just want one y-axis.

ycommon is an option to have same y-scale for all the graphs that are being combined and that does not mean one axis:

Dear Statalist,
am using example data.
I install dataex in my stata 14.1 version but when i copy and past i did not have gray box.

Use the code delimiter from the right hand side corner. Click the A button and then click the # button. Write/paste your data inside the two 'code' delimiters.

[Oded Mcdossi]

You can use the yscale(off) option in the last two graphs

[Roman Mostazir]

That is a good option suggested by Oded which will give you three distinct graphs with one yaxis, then you need to allow -col(3)- option in the -graphcombine- command otherwise you may end up having one graph in the second row without any scale.

[suganthiny kumarasamy]

thank you so much for your comments