Dev– category –
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Python
How to calculate datetime in Python
How can I calculate datetime in Python ? Sometimes we would like to calculate datetime in Python. Then we search like "Python date time calculate". So today ... -
Dev
Why does decision tree make flat prediction?
Oh, my trained model predicts same values.It seems wrong. When we want to predict something that has numeric value, we sometimes use AI model. Decision tree ... -
Python
How to keep column order in case of concatenate pandas DataFrame
When I concatenate pandas DataFrame, column order was changed.I want to keep original column order. Pandas DataFrame is useful for data handling in Python. B... -
Python
How to wait input from keyboard in Python
I want my program to wait input text. Not only Python but also other program, you want it to wait input from keyboard. But what should we write to wait input... -
Python
Open rolling window backwards in pandas
I can open rolling window forward.But how can I open it backwards ? With using pandas, sometimes you may want to open window not forward but backwards. But h...