hydromt.stats.skills.percentual_bias#

hydromt.stats.skills.percentual_bias(sim, obs, dim='time')[source]#

Return the percentual bias between two time series.

$\begin{array}{r} P B i a s = 100 * \\ f r a c s u m_{i = 1}^{N} (s i m_{i} - o b s_{i}) s u m_{i = 1}^{N} (o b s_{i}) \end{array}$

Parameters:

sim (xarray DataArray) – simulations time series
obs (xarray DataArray) – observations time series
dim (str, optional) – name of time dimension in sim and obs (the default is ‘time’)

Returns:

percentual bias

Return type:

xarray DataArray