Hello, I have a x,y,z file. Z is not corresponding to a simple analytical function of x and y. I am trying to find the minimum value of z by a spline interpolation or from a polynomial fit. I tried the akima package but as the location of the point I am looking for (the minimum) is outside of the convex hull it's not working. If someone has any idea or any suggestion? Thank you in advance
Pierre ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
