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Psidom

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1713.63 (95th) 		Reputation
135,522 (452nd)
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Title Δ
how to convert a matrix of values into a binary matrix +1.01
transfer dictionary to DataFrame? -1.59
How to append aggregated vectors for keyed data as a new column in R -0.37
Failed to connect the database when using sqldf in r 0.00
How to construct a numpy array from multiple vectors with data alig... -1.90
R - For Loop to sample from a different list based on condition +0.41
Recode values in one vector to maximize the number of pairs of the... -1.75
Plotting in python using matplotlib? +1.36
How to get the mean of a subset of rows after using groupby? -0.57
Sample without the NAs 0.00
Numpy using smaller 2D array to map with bigger array with more ele... -1.91
R - Get Coordinate or List of Lists representation of a sparse martix +0.42
Convert matrix to three defined columns in R -2.32
Python List of Strings to Tuple Pairs +0.41
Find and count equal dicts inside a list 0.00
How to iterate over Pandas Series generated from groupby().size() 0.00
How to combine all rows into a single row? +1.61
Filter rows after grouping the data pandas python 0.00
substitution of a row name for a value in a dataframe in r 0.00
In R:how to extract part of list of list +1.63
Accessing list elements within mutate 0.00
Pandas, DataFrame: Spiting one column into multiple columns +1.53
Increment a matrix based on another matrix of indices +0.97
Round sequence of numbers to chosen numbers +0.35
python datetime remove minute and second information -0.41
Use grep to find letter without separate +1.67
Removing entries from arrays in a parallel manner -0.09
Conditionally removing a row and another one after that in R +0.50
Elementwise Median of 3 matrices in R +0.96
tryCatch in R: handling a non-numeric vector 0.00
Quickly subset dataframe for minumum value of a factor level +1.05
Text String Isolation and Transformation in R +1.25
Importing Data from a json file in R 0.00
putting every 3rd row of a matrix in a new matrix +1.28
Count unique values of a column by pairwise combinations of another... +0.41
Splitting duplicates into separate table - Pandas +1.57
how to convert items of array into array themselves Python +2.13
Filter rows based on the dplyr groupby, summaraize output +1.75
Filter all values before max value using dplyr +1.07
R function, error 0.00
Count unique values with pandas -0.51
replace only date in PosixCt class -1.62
How to return the top 10 frequent column values with pandas? 0.00
How to pair rows in a data frame with many columns using dplyr in R? -2.25
Python & Pandas: Set a random value to a column, based on condi... +0.72
Pandas: Add new column to df with condition 0.00
How can I match items from one list to the other in python? -0.09
Cycle through combinations of 3 out of 5 -0.46
Pandas: replace list of values from list of columns +0.43
Streamline dplyr mutation of selected groups 0.00