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David Arenburg

Rating
1732.38 (66th) 		Reputation
80,581 (1,024th)
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Title Δ
R: edit column values by using if condition +0.28
R calculate the percentage change when the denominator is 0 0.00
Convert strings representing unit of time or distance to numeric +0.41
Expand colored part of area plot in ggplot +0.42
How to add commas to numbers on axes in matplot - R 0.00
how to transform columns of a data frame according to the values in... -0.11
3-Dimesion Array in R -0.08
In R, How to use regular expression to split string? -0.00
Factors and Subfactors in R +1.26
Create a vector of unique values out of several columns with overla... +0.44
Converting dates, minutes and seconds to ISOdatetime format in R -0.61
How to calculate statistics for specific range with 2 Group Variabl... +0.04
Label code chunks in regular Rstudio .r script 0.00
Create sum of counts for duplicate values +1.15
Save lapply output as data frame loop 0.00
The output of the summary function +0.61
R - create Stock data from data frame with begin and end date 0.00
R: Converting multiple boolean columns to single factor column +1.22
Groupby bins and aggregate in R +0.88
Remove string characters -1.00
How levels(factorObject)[factorObject] generate complete vector? +0.32
Create a new column whose formula depends on a cell value of anothe... -0.08
rearrange the output of the aggregate function into a new table +2.36
Different X-Coordinates than the X variable used in ggplot 0.00
greek symbol for axis label in R zoo plot +0.41
Can you "teach" computers to do algebra using variable ex... -0.05
Passing multiple columns to a function in R +0.43
Managing duplicated rows in large data frames +1.72
Elegant way to drop rare factor levels from data frame +0.12
Create factor based on multiple column values +0.07
for loop in R using if & print 0.00
R: How to remove bad data (characters, numerical, etc.) from matrix 0.00
Can I split this dataframe up so that there's a new row for eac... +1.15
comparing two files and outputting common elements +0.53
regex to extract partial string matching certain words in R -0.82
How to organize percentage values on top of a stacked bar chart ggp... 0.00
How to create summaries of subgroups based on factors in R -0.06
Extract columns with same names from multiple data frames [R] 0.00
Loop function and add columns to dataframe in R -1.02
How to keep repetitive elements in R using intersect()? -0.14
Show x-axis and y-axis for every plot in facet_grid 0.00
Use function like cumulative sum by group or by each list element i... +0.23
Order factor levels in order of appearance in data set +1.92
replace values in a data.frame with values from another data.frame -1.70
How to remove duplicated column names in R? 0.00
Order list of frames into new frame 0.00
R Get Column Names from data.frame -0.80
How to assign a unique ID number to each group of identical values... -0.96
Rearranging a data frame? 0.00
How to create rows for missing data in my data frame +1.23