Statistical Method

Description

Equation No.

Elevation Error

$Z_{dif}=Z_{DEM}-Z_{GPS}$

Equation (1)

Mean Error

$ME=\frac{{\displaystyle {\sum }_{i=1}^n{Z}_{dif(i)}}}{n}$

Equation (2)

Standard Deviation

$ST{D}_{err}=\pm \sqrt{\frac{{\displaystyle {\sum }_{i=1}^n{\left(Z_{dif\left(i\right)}-ME\right)}^2}}{n-1}}$

Equation (3)

Root mean square error

$RMSE=\sqrt{\frac{{\displaystyle {\sum }_{i=1}^n{\left(Z_{dif\left(i\right)}\right)}^2}}{n}}$

Equation (4)