Visualize monthly mean, median and standard deviation of S&P500 returns
You have also learned how to calculate several aggregate statistics from upsampled data.
Let's use this to explore how the monthly mean, median and standard deviation of daily S&P500 returns have trended over the last 10 years.
This exercise is part of the course
Manipulating Time Series Data in Python
Exercise instructions
As usual, we have imported pandas
as pd
and matplotlib.pyplot
as plt
for you.
- Use
pd.read_csv()
to import'sp500.csv'
, set aDateTimeIndex
based on the'date'
column usingparse_dates
andindex_col
, assign the results tosp500
, and inspect using.info()
. - Convert
sp500
to apd.Series()
using.squeeze()
, and apply.pct_change()
to calculatedaily_returns
. .resample()
daily_returns
to month-end frequency (alias:'M'
), and apply.agg()
to calculate'mean'
,'median'
, and'std'
. Assign the result tostats.
.plot()
stats
.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Import data here
sp500 = ____
# Calculate daily returns here
daily_returns = ____
# Resample and calculate statistics
stats = ____
# Plot stats here