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Add logger.warning when falling back to Newton method (#950)

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This adds logger.warning when we fall back to Newton method.
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Jerry Prawiharjo 2019-05-02 14:34:24 -07:00 committed by Ben Letham
parent f9adb9623e
commit c11e668c0d
1 changed files with 1 additions and 0 deletions
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python/fbprophet/forecaster.py
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@ -1119,6 +1119,7 @@ class Prophet(object):
params = model.optimizing(**args)
except RuntimeError:
# Fall back on Newton
logger.warning('Default optimization returns with an error. Falling back to Newton method.')
args['algorithm'] = 'Newton'
params = model.optimizing(**args)