Suppose I had a Dataframe df in Pandas with columns ColA, ColB, ColC,.... with rows Row1, Row2, Row3,...
If I want to acccess a part of df based on the values of a certain column (say A) I can do so as follows:
df
df[df['ColA'] == value]
This returns a Series. Now, I can even used some of the built in methods on this Series such as df[df['ColA'] == value].sum() or df[df['ColA'] == value].mean().
Is there a similar method to do the same thing with DataFrames.jl on Julia?