[Retracted] Interpolation Parameters in Inverse Distance-Weighted Interpolation Algorithm on DEM Interpolation Error

Table 1

Results of regional division.

Landform type	Plain	Hills	Low mountain	Middle mountain	Alpine
Area	Jiangsu	Shandong	Henan	Guizhou	Sichuan
Minimum elevation/m	2	147	392	1047	3151
Highest elevation/m	27	294	783	1776	4527
Average slope/(°)	1.5	8.6	14.7	21.6	33.9