LPML and LPMLE3 codes: local polynomial maximum likelihood estimator (semi-infinite and 3 point)

This package contains the LPML and LPMLE3 codes which has been cleaned up for external use. The codes are an updated version belonging to the publications: Determining groundwater-surface water exchange from temperature-time series: Combining a local polynomial method with a maximum likelihood estimator by G. Vandersteen, U. Schneidewind, C. Anibas, C. Schmidt, P. Seuntjens and O. Batelaan LPMLE3: A novel 1-D approach to study water flow in streambeds using heat as a tracer by U. Schneidewind, M. van Berkel, C. Anibas, G. Vandersteen, C. Schmidt, I. Joris,P. Seuntjens, O. Batelaan, and H. J. Zwart