Dear list
Using cubic splines, I would like to display the knots used. In Stata
10, I can use mkspline to create the spline variables and it returns
the values of the knots in a matrix. I would like to transfer this
matrix in a nice way to my scatter plot command as the xline argument.
Example:
sysuse auto
mkspline smpg=mpg, nknots(7) displayknots cubic
matrix list r(knots)
scatter price mpg, xline(14 16 18 20
23 26 31)
^ here I would like to write
r(knots) instead of copy-pasting the values
Best regards,
Claus
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