Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)

Question

I\'m reading some automated weather data from the web. The observations occur every 5 minutes and are compiled into monthly files for each weather station. Once I\'m done pa

Answer 1

If anyone like me likes chainable data manipulation using the pandas dot notation (like piping), then the following may be useful:

df3 = df3.query('~index.duplicated()')

This enables chaining statements like this:

df3.assign(C=2).query('~index.duplicated()').mean()