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add: datetime instead of date for plot_multistep #470

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add: datetime instead of date for plot_multistep #470

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9 changes: 6 additions & 3 deletions learntools/time_series/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -245,7 +245,10 @@ def plot_multistep(y, every=1, ax=None, palette_kwargs=None):
if ax is None:
fig, ax = plt.subplots()
ax.set_prop_cycle(plt.cycler('color', palette))
for date, preds in y[::every].iterrows():
preds.index = pd.period_range(start=date, periods=len(preds))
freq = y.index.freq
if freq is None:
freq = pd.infer_freq(y.index)
for datetime, preds in y[::every].iterrows():
preds.index = pd.period_range(start=datetime, periods=len(preds), freq=freq)
preds.plot(ax=ax)
return ax
return ax