interp

Interpolation Methods

CRAN Package

Bivariate data interpolation on regular and irregular grids, either linear or using splines are the main part of this package. It is intended to provide FOSS replacement functions for the ACM licensed akima::interp and tripack::tri.mesh functions. Linear interpolation is implemented in interp::interp(..., method="linear"), this corresponds to the call akima::interp(..., linear=TRUE) which is the default setting and covers most of akima::interp use cases in depending packages. A re-implementation of Akimas irregular grid spline interpolation (akima::interp(..., linear=FALSE)) is now also available via interp::interp(..., method="akima"). Estimators for partial derivatives are now also available in interp::locpoly(), these are a prerequisite for the spline interpolation. The basic part is a GPLed triangulation algorithm (sweep hull algorithm by David Sinclair) providing the starting point for the irregular grid interpolator. As side effect this algorithm is also used to provide replacements for almost all functions of the tripack package which also suffers from the same ACM license restrictions. All functions are designed to be backward compatible with their akima / tripack counterparts.


Documentation


Team


Insights

Last 30 days

This package has been downloaded 34,622 times in the last 30 days. The downloads are officially high enough to crash an underfunded departmental server. Quite an accomplishment! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 650 times.

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0 downloadsDec 8, 2024
0 downloadsDec 9, 2024
0 downloadsDec 10, 2024
0 downloadsDec 11, 2024
0 downloadsDec 12, 2024
1,757 downloadsDec 13, 2024
695 downloadsDec 14, 2024
765 downloadsDec 15, 2024
1,690 downloadsDec 16, 2024
1,749 downloadsDec 17, 2024
1,741 downloadsDec 18, 2024
1,646 downloadsDec 19, 2024
1,603 downloadsDec 20, 2024
736 downloadsDec 21, 2024
749 downloadsDec 22, 2024
1,237 downloadsDec 23, 2024
784 downloadsDec 24, 2024
628 downloadsDec 25, 2024
825 downloadsDec 26, 2024
918 downloadsDec 27, 2024
476 downloadsDec 28, 2024
898 downloadsDec 29, 2024
1,143 downloadsDec 30, 2024
1,243 downloadsDec 31, 2024
608 downloadsJan 1, 2025
1,057 downloadsJan 2, 2025
1,382 downloadsJan 3, 2025
681 downloadsJan 4, 2025
716 downloadsJan 5, 2025
1,466 downloadsJan 6, 2025
1,598 downloadsJan 7, 2025
1,606 downloadsJan 8, 2025
1,561 downloadsJan 9, 2025
2,014 downloadsJan 10, 2025
650 downloadsJan 11, 2025
476
2,014

Last 365 days

This package has been downloaded 679,555 times in the last 365 days. Half a million downloads! This work is now a household name in certain academic circles. The day with the most downloads was Jan 31, 2024 with 6,602 downloads.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Data provided by CRAN


Binaries


Dependencies

  • Imports2 packages
  • Enhances1 package
  • Suggests10 packages
  • Linking To2 packages
  • Reverse Depends1 package
  • Reverse Imports24 packages
  • Reverse Suggests31 packages