Plot mpspline GSIF

[morge78]

Hi everyone, in this moment i'm working with de GSIF package for calculate soil organic carbon stock, but I had trouble found a function that would allow me to plot the results of the mpspline function. In the ithir package there was a plot_ea_splines function and my question is, is there a similar function in the package GSIF for plot the results of mpspline $var.std?.