From 1a9cac2fd80baa377c4ca39e8626fb90a390ef8c Mon Sep 17 00:00:00 2001 From: Daniel Friesel Date: Thu, 19 Apr 2018 14:04:14 +0200 Subject: set smape/mape to NaN if incalculable --- lib/dfatool.py | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'lib') diff --git a/lib/dfatool.py b/lib/dfatool.py index f0f71f1..299190f 100755 --- a/lib/dfatool.py +++ b/lib/dfatool.py @@ -135,8 +135,12 @@ def regression_measures(predicted, actual): if np.all(actual != 0): measures['mape'] = np.mean(np.abs(deviations / actual)) * 100 # bad measure + else: + measures['mape'] = np.nan if np.all(np.abs(predicted) + np.abs(actual) != 0): measures['smape'] = np.mean(np.abs(deviations) / (( np.abs(predicted) + np.abs(actual)) / 2 )) * 100 + else: + measures['smape'] = np.nan #if np.all(rsq_quotient != 0): # measures['rsq'] = (np.sum((actual - mean) * (predicted - mean), dtype=np.float64)**2) / rsq_quotient -- cgit v1.2.3