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. 2018 May 5;47(8):884–892. doi: 10.1007/s13280-018-1050-y

Table 2.

Statistics for the Marenzelleria spp. biomass prediction including root-mean-square error (RMSE) and normalized root-mean-square error (NRMSE)

Train Test
RMSE 5.746 4.917
NRMSE 0.041 0.069
Mean 1.515 1.191
r 2 0.447 0.239

Sample sizes were ntrain = 7962, ntest = 1000