splinefits

[Matt Piercy]

Can you put two splinefits on the same graph?

[Rich Goldstein]

your question is not completely clear but the answer is almost certainly "yes"; however, you provide no detail about anything so specific help cannot given; please read the FAQ and follow the advice in there

[Nick Cox]

I guess this refers to splinefit from SSC. My impression from the help file is No, but there is extra material on GitHub and it would be a good idea to get feedback from Asjad Naqvi, the command author. Asjad is a member here, but he requests interaction on GitHub.

[Asjad Naqvi]

Thanks again for tagging Nick Cox! Somehow Stata users are averse to GitHub...


Matt Piercy: "splinefit" has been superceded by "catspline": https://github.com/asjadnaqvi/stata-...ions#catspline which is part of the "graphfunctions" package:

ssc install graphfunctions, replace

.

You can use this to generate as many splines as you want. See the help files for details.

[Nick Cox]

If the goal is to get a set of smoothed series, I am very positive about local polynomials. which have a great deal of flexibility (pun intended):

kernel type choice

kernel width choice

degree of polynomial choice

superimposition of different curves

saving numeric results to variables

and so forth.

See e.g. lpoly, twoway lpoly

[Bruce Weaver]

Somehow Stata users are averse to GitHub...

🤔.oO(Or perhaps GitHub users are averse to Statalist?)

[Matt Piercy]

Cool thanks Asjad and Nick - I'll give these a try.