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ThomasIsCoding

Rating
1498.73 (3,826,018th) 		Reputation
43 (1,121,033rd)
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Title Δ
Separate a string of multiple dates and names in R +2.31
Creating a specific matrix in R +1.75
Get duplicate values within groups -1.89
How to add a column that contains specific values when criteria is... -1.90
how to find how many unique values based on different classes -0.85
Convert two list in one list from R +0.28
Discrepancy in calculation using modulo operator -1.22
R creating a list of JSON's from a DF -1.31
Efficiently find where any column in one data frame matches any col... +2.56
How to Change Column Names? -0.20
Keep rows in dataframe containing the SAME value in one column in R +0.24
Count unique values by column +1.42
Adding list elements as a columns of a data frame -0.89
Filtering by conditional values in R -0.70
Return the multiply of a column -1.30
Creating serial numbers based on a group unique id in 2 columns -0.98
how to transform this matrix in R ? (one-hot,chr) -1.96
How to drop all variables/columns without content from a data frame... +1.36
Row mean of two matching columns with same name but differ by: '... +2.29
R - change matrix values based on another matrix indices +1.55
How to count the number of columns with certain elements in it? -0.47
How to merge two dataframes that have different column names +0.00
Data frame with multiple colums, from a group of same values in one... +0.29
Grouping data.table by date sets -1.44
Is there any function to get the results from multiple rowsum of mu... +1.34
R. Remove everything between to delimiter characters +2.32
How do I count the numbers of occurrences for each group in a tidy... -1.20
Leading vector taking values based on future values of another vector -0.43
Converting empty values to NULL in R - Handling date column +0.14
Flag based on multiple conditions -0.53
Calculate the sum of obervation values with conditions 0.00
Filtering long column names by one word and rename this columns -0.50
Matching two data frames with multiple columns and adding a column... -0.32
Find rows with NA between 0s and 1s +1.23
What is the fastest way to construct this sparse matrix in R +1.74
Assign rownames to data frame -2.00
File entire vector by a certain appearance of another vector +1.63
Max of sum of combinations across columns in a dataframe +1.36
Applying a function to all column combination pairs and extracting... 0.00
Remove NA in R to compute cumulative returns 0.00
Adding values to a dataframe based on columns in another dataframe... +2.24
Creating objects from a column and assigning values from another in R +0.26
How to write a summation from 1 to n in r 0.00
eval parse save string to variable -0.60
Getting dates in R -0.00
Error preventing from producing bar chart +1.90
Lagging vector adding 1 while resetting to 0 when a condition is met +2.29
replace with n/a if n/a in column next to it +0.50
Minimum number of distinct elements after removing m items using R... +0.01
Export different dataframes to the same Excel sheet -1.87