How to shift the time index of a time series using pandas functions?

How to shift the time index of a time series using pandas functions?

How to shift the time index of a time series using pandas functions?

This recipe helps you shift the time index of a time series using pandas functions


Recipe Objective

Suppose we have to shift index by desired number of periods with an optional time freq. It can be done by shift function.

So this recipe is a short example on How to shift the time index of a time series using pandas functions. Let's get started.

Step 1 - Import the library

import pandas as pd

Let's pause and look at these imports. Pandas is generally used for performing mathematical operation and preferably over arrays.

Step 2 - Setup the Data

df = pd.DataFrame({"Col1": [10, 20, 15, 30, 45], "Col2": [13, 23, 18, 33, 48]}, index=pd.date_range("2020-01-01", "2020-01-05")) print(df)

Here we have setup a random dataset with some random values in it.

Step 3 - Shifting time index.

print(df.shift(periods=3, fill_value=0))

Here we have shifted our time index by a period of 3 and all the remaining value have filled with 0.

Step 4 - Let's look at our dataset now

Once we run the above code snippet, we will see:

Scroll down to the ipython file to look at the results.

We can see the time index being shifted by period of 3. For col1, 10 value is for 2020-01-04.

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