Informatics Practices
The iteritems() iterate over vertical subset in the form of (col_index,series) pair.
Related Questions
A DataFrame is a 1D array-like object containing an array of data and an associated array of data labels.
To access subset of a dataframe, we can use loc[] and iloc[] attributes.
The value NA/NAT/None are the same in Pandas and considered as NaN-values.
The iteritems() brings horizontal subsets from a dataframe.