Pandas–Operations

There are various useful pandas operation available which is really handy in data analysis.

In this lecture we are going to cover following topics:

• How to find unique values.
• How to select data with multiple conditions?
• How to apply function on a particular column?
• How to remove column?
• How to get column and index name?
• Sorting by column
• Checking null value
• Filling in NaN values with something else
• Pivot table creation
• Change column name in pre-existing data frame.
• .map() and .apply() function
• Get column name in the data frame
• Change order of column in the data frame
• Add new column in existing data frame
• Data type conversion
• Date and time conversion

Let’s see all these operations in python