hydromt.stats.skills.rsquared#
- hydromt.stats.skills.rsquared(sim, obs, dim='time')[source]#
Return the coefficient of determination of two time series.
\[\begin{split}r^2=(\\frac{\\sum ^n _{i=1}(e_i - \\bar{e})(s_i - \\bar{s})} {\\sqrt{\\sum ^n _{i=1}(e_i - \\bar{e})^2} \\sqrt{\\sum ^n _{i=1}(s_i - \\bar{s})^2}})^2\end{split}\]- Parameters:
sim (
xarray DataArray) – simulations time seriesobs (
xarray DataArray) – observations time seriesdim (
str, optional) – name of time dimension in sim and obs (the default is ‘time’)
- Returns:
the coefficient of determination
- Return type:
xarray DataArray