How can I get a value from a cell of a dataframe?


I have constructed a condition that extracts exactly one row from my dataframe:

d2 = df[(df['l_ext']==l_ext) & (df['item']==item) & (df['wn']==wn) & (df['wd']==1)]

Now I would like to take a value from a particular column:

val = d2['col_name']

But as a result, I get a dataframe that contains one row and one column (i.e., one cell). It is not what I need. I need one value (one float number). How can I do it in pandas?


If you have a DataFrame with only one row, then access the first (only) row as a Series using iloc, and then the value using the column name:

In [3]: sub_df
          A         B
2 -0.133653 -0.030854

In [4]: sub_df.iloc[0] Out[4]: A -0.133653 B -0.030854 Name: 2, dtype: float64

In [5]: sub_df.iloc[0][‘A’] Out[5]: -0.13365288513107493

Renaming column names in Pandas

Filter dataframe rows if value in column is in a set list of values [duplicate]