Set value for particular cell in pandas DataFrame using index

Question

I\'ve created a Pandas DataFrame

df = DataFrame(index=[\'A\',\'B\',\'C\'], columns=[\'x\',\'y\'])

and got this

    x    y
A  NaN         


        

Answer 1

To set values, use:

df.at[0, 'clm1'] = 0

• The fastest recommended method for setting variables.
• set_value, ix have been deprecated.
• No warning, unlike iloc and loc