To be used for grouping variables together based on a given condition.
In the dataframe below, I would like to eliminate the duplicate cid values so the output from df.groupby('date').…
python pandas duplicates unique pandas-groupbyI'm having issues transitioning to pandas from R where dplyr package can easily group-by and perform multiple summarizations. Please help …
python r pandas pandas-groupby summarizeIs there any way I can retain the original index of my large dataframe after I perform a groupby? The …
python pandas dataframe indexing pandas-groupbyI have a dataframe that I am doing a groupby() on to get the counts on a column's values. I …
python pandas group-by pandas-groupbyI'm sure this has been asked before, sorry if duplicate. Suppose I have the following dataframe: df = pd.DataFrame({'key': […
pandas pandas-groupby split-apply-combineHaving pandas data frame df with at least columns C1,C2,C3 how would you get all the unique C1,…
python pandas pandas-groupbyI have a dataframe containing time series for 100 objects: object period value 1 1 24 1 2 67 ... 1 1000 56 2 1 59 2 2 46 ... 2 1000 64 3 1 54 ... 100 1 451 100 2 153 ... 100 1000 21 I want to calculate moving average with window 10 …
python pandas pandas-groupby moving-averageI have a dataframe with panel data, let's say it's time series for 100 different objects: object period value 1 1 24 1 2 67 ... 1 1000 56 2 1 59 2 2 46 ... 2 1000 64 3 1 54 ... 100 1 451 100 2 153 ... 100 1000 21 I want …
python pandas pandas-groupbyI want to improve the time of a groupby in python pandas. I have this code: df["Nbcontrats"] = df.groupby([…
python pandas numpy pandas-groupbyThere is something wrong when I use groupby method: data = pd.Series(np.random.randn(100),index=pd.date_range('01/01/2001…
python python-2.7 pandas pandas-groupby