what is the optimal way to encode a month feature? what's the optimal way to encode a monthly feature optimal way to encode features what's optimal way to encode a month feature what's the optimal way to encode a'month' feature best way to encode month feature what is the optimal way to encode a month? what's the optimal way to encode a month feature? what's the optimal way to encode a'months' feature optimal way to encode a month feature what's the optimal way to encode a month feature what is the optimal way to encode a monthly feature? what is the optimal way to encode a'month' feature? what is optimal encoding for a month feature what's the optimal way to encode a month feature? what's the optimal way to encode a month feature? which feature is optimal? what is the optimal way to encode a month feature what is the best way to encode a month feature what kind of feature should a month be