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Quang Hoang

Rating
1649.33 (578th) 		Reputation
2,157 (78,028th)
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Title Δ
How to extract years from a string in each row and generate new row... +1.87
calculating percentile values for each columns group by another col... 0.00
How to resample/reindex/groupby a time series based on a column'... +1.96
Pandas: Transpose columns (b,c,d) grouped by column a as index -0.17
Read first and last value from a column in a multiindex dataframe 0.00
Find and replace float numbers on numpy array +2.19
Multiply columns based on two columns conditions from different dat... -0.20
KeyError: 'filename' (Pandas) 0.00
Can I plot a bar plot where the color of each bar depended on wheth... 0.00
Forward fill missing values by group after condition is met in pandas -0.91
How to do a pivot in pandas with duplicated entries 0.00
How do I perform inter-row operations within a pandas.dataframe +1.69
Best way to move a column in pandas dataframe to last column in lar... +1.31
Plotting certain bars in a series and groupnig the rest in one bar +0.45
Create a column with unique values for every unique value in anothe... +0.39
How to create new columns based off specific conditions? -0.12
Pandas drop nan using first valid index by group +2.00
How to access last year values to compare year on year ? datetime i... -1.81
Seaborn barplot with error bars only in one direction 0.00
Cumulative sum sorted descending within a group. Pandas +1.19
How to plot based on values of 2 columns +0.39
Remove n following rows in time indexed Pandas dataframe based on v... +1.38
Writing own custom aggregation function for groupby +0.93
Checking if the points fall within circleS +2.25
Pandas Create DataFrame of Multiple Column Counts 0.00
Transpose a DataFrame based on the amount of Columns with Values +0.40
Add suffix to column names that don't already have a suffix +1.33
How to convert multi-indexed datetime index into integer? -2.47
Create Datetime Column from Integer Column - Hours and Minutes +1.41
Grouping by, applying a function, and inserting a new column with c... +1.36
Merge Columns with the Same name in the same dataframe if null 0.00
More rows than intended when calling DataFrames by index 0.00
Applying same colour for same entries in 4 columns scatter matplotl... 0.00
Extract max of a multiindex pandas dataframe with strings and NaN 0.00
python - create multiple dataframes in loop -0.11
How to draw plots on Specific pandas columns -0.12
Drop element in numpy array (or pandas series) if difference to pre... +0.26
Replacing letters with numbers in python objects +0.39
How to plot specific colors for a range of values in python datafra... 0.00
Summing Boolean for each ID's associated ID and assigning it to... -1.08
Sum by groups, preserving NAs -0.52
groupby date using other start time than midnight +2.06
Pandas dataframe with concatenated column +0.39
Difference across crosstab +0.40
How to draw multiple levels groupby histograms in Python? -2.42
Duplicate rows with conditions pandas dataframe python +0.40
How to plot each second column of a pandas dataframe? 0.00
Create Time Ranges in Pandas +2.30
Creating Flat Dataframe from Dataframe with Multiple Rows Containin... 0.00
How to iterate through rows and % weight of groups of rows based on... 0.00