Map In Python Pandas

To know more about the self argument in the function, you can refer to my previous article. Used for substituting each value in a series with another value, that may be derived from a function, a dict or a series. In this case it is the world meat consumption from wikipedia.

To map the two series, the last column of the first series should be the same as the index column of the second series, and the values should be unique. To know more about the self argument in the function, you can refer to my previous article. This method applies a function that accepts and returns a scalar to every element of a dataframe.

We need to inspect the page we are going to parse from.

The map() function is used to map values of series according to input correspondence. Used for substituting each value in a series with another value, that may be derived from a function, a dict or a series. Map() is useful when you need to apply a transformation function to each item in an iterable and transform them into a new iterable.map() is one of the tools that support a functional programming style. Parameters funccallable python function, returns a single value from a single value.