| anisoDir | Calculate the direction of maximum continuity considering 4 directions |
| anisoDirL | Calculate the direction of maximum continuity considering 4 directions |
| anisoR | Calculate the index of anisotropy considering the spatial variability along 4 directions |
| anisoRL | Calculate the index of anisotropy considering the spatial variability along 4 directions |
| CalcMeans | Calculate the mean of absolute values raised to an exponent found in a search window |
| CalcMedians | Calculate the median of absolute values found in a search window for each raster in a list |
| circularDispersionGV | Compute circular variance of aspect (i.e. of the gradient vector) |
| circularDispersionNV | Compute circular variance of normal vectors to surface |
| circularEigenNV | Compute circular variance of normal vectors to surface |
| k05ck2 | basic kernels |
| k1c | basic kernels |
| k1ck2 | basic kernels |
| k2c | basic kernels |
| k2ck2 | basic kernels |
| k4c | basic kernels |
| k6c | basic kernels |
| k8c | basic kernels |
| KernelCircular | Build a circular moving window |
| KernelRectangular | Build a rectangular kernel of size X x Y |
| Madscan | Calculate MAD basic indexes |
| Meanscan | Calculate less robust geostatistical indexes (mean of absolute differences raised to an exponent) |
| RRI | RRI: Radial Roughness index |
| RRI.numeric | RRI: Radial Roughness index |
| RRI.SpatRaster | RRI: Radial Roughness index |
| RRIK3 | RRIK3: Radial Roughness index with differences of order 3 |
| RRIK3.numeric | RRIK3: Radial Roughness index with differences of order 3 |
| RRIK3.SpatRaster | RRIK3: Radial Roughness index with differences of order 3 |
| RRIMax | RRIMax: Maximum Radial Roughness index |
| RRIMax.numeric | RRIMax: Maximum Radial Roughness index |
| RRIMax.SpatRaster | RRIMax: Maximum Radial Roughness index |
| RRIMin | RRIMin: Minimum Radial Roughness index |
| RRIMin.numeric | RRIMin: Minimum Radial Roughness index |
| RRIMin.SpatRaster | RRIMin: Minimum Radial Roughness index |
| Trik2 | Improved TRI (with differences of order 2), reducing/removing slope dependence. |
| Trik2.numeric | Improved TRI (with differences of order 2), reducing/removing slope dependence. |
| Trik2.SpatRaster | Improved TRI (with differences of order 2), reducing/removing slope dependence. |