value error in python statsmodels.tsa.seasonal

python pandas statistics time-series decomposition

After some searching i found [here][1] that, i have to add values to ts_log.price

decomposition = seasonal_decompose(ts_log.price.values, freq=30)

Edit as to comments. Adding just freq=30 is enough!

python pandas statistics time-series decomposition

You can avoid this error by:

ts_log = ts_log.asfreq('d')

this may generate some missing values:

ts_log = ts_log.fillna(method='bfill').fillna(method='ffill')

python pandas statistics time-series decomposition

Following has resolved the error :

decomposition = seasonal_decompose(log_county_data , period = 30)

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