Plotting coefficients in ascending or descending order (especially when using marginsplot / coefplot)

[Michael Jankowski]

Dear all,

I often see graphs in which the coefficients are plotted in ascending or descending order. I assume most of these plots are created in R, but I would like to know if this is also possible using Stata. For example when plotting marginal effects I normally use a code like this:

sysuse auto, clear

ssc install coefplot, replace all

reg price i.rep78

margins, dydx(rep78) post

est store ame_rep78

coefplot ame_rep78

In the created plot the coefficients are sorted by the value of the independent variable (rep78=2, rep78=3,...). However, is there some way to sort/plot the coefficients by their effect (i.e. rep78=3, rep78=4, rep78=2, rep78=5)?

Thank you very much for your help.

Michael Jankowski

(I use Stata 13)

[daniel klein]

I suppose you could extract the coefficients and their names from the e(b) matrix, sort the values and names accordingly, then pass the resulting namelist to coefplot's order() option.

Things might be more complicated with marginsplot.

Best
Daniel

[Michael Jankowski]

Thanks Daniel!

Based on your suggestion I have found a solution. My code is as follows and I am pretty sure that there is a more comfortable solution to this. However it works for me and so I am happy

*installing additional packages (if necessary)

ssc install coefplot, replace all
ssc install matsort, replace all

sysuse auto, clear

reg price i.rep78

margins, dydx(rep78)

matrix plot = r(table)'

matsort plot 1 "down"

matrix plot = plot'

coefplot (matrix(plot[1,])), ci((plot[5,] plot[6,]))

Thanks once again!

Michael

[Svend Juul]

Supplementary remark: From your two posts I get the impression that you install coefplot from SSC each time you are going to use it. That is not at all necessary; once you have installed it, you have it.

[Michael Jankowski]

Hi Svend,

I do not do that I just wrote it in the code so that it is replicable for users who haven't installed coefplot.

[Roman Mostazir]

Thanks Michael, this is very helpful for me too as I often intended doing that. It would have been great to have a "sort" type option within the "coefplot" though