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Matthew Plourde

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1571.55 (3,876th) 		Reputation
35,768 (3,204th)
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Title Δ
R interpreting variable in data frame as factor; it isn't +1.90
Sort a matrix based on the number of repeating elements in a partic... +0.44
Locating error after program has run +0.70
Merge and paste duplicate columns in R +0.21
regex, extract string between / +0.35
Lookaround lookbefore regex for R +1.92
calculating the means of groups of columns in a data frame -0.11
What is the opposite of %in% in r +2.53
R: merging a lot of data.frames 0.00
How to convert a list of lists to an array of lists? +0.46
Add a column with values and NAs -2.10
Comparing values of Two Table With respect to a tolerance in R +1.87
How to skip an error in a loop +1.02
Remove consecutive duplicates from dataframe +1.08
replication of number by other column in r 0.00
R/Shiny plots do not show in the browser 0.00
How to exclude cases that do not repeat X times in R? -1.90
How do I combine two columns with offset data? +0.47
How to match a list of simple alternating patterns in R +2.12
Matching values from two vectors in R -0.42
list names as vector in list +0.38
R function to search for a function 0.00
descending sort in data.table and speed -1.20
Create lags and moving average -0.09
Is it possible to set a default location for R packages instead of... -0.05
Efficient way to output subset of data frame based on column +1.92
Splitting a string by space except when contained within quotes +2.01
How can I use attr<- with lapply? +0.41
Grab from beginning to first occurrence of character with gsub -0.68
Filling NA by copying content of other rows in R 0.00
Print a data frame with columns aligned (as displayed in R) +1.25
Converting a list to one row data.frame +1.05
Creating a unique ID in R +2.17
How can a script find itself in R running from the command line? +0.47
Replacing NA's with 1 or 0 depending on position in Row in R 0.00
Determining minimum values in a vector in R -0.89
Searching for unique values in dataframe and creating a table with... -1.26
How to find where an R error occurred? +0.13
How to load a package such that referring to symbols with namespace... 0.00
How to find the final value from repeated measures in R? -0.01
subseting a data frame is not working when keyed on an NA value +0.60
How to programmatically get header information of dataset from UCI... +0.43
using split, cut and duplicated function to filter data in R 0.00
remove a value and its corresponding value in a table 0.00
How can I repeat a data.frame? +0.43
How to append a plot to an existing pdf file +1.12
R Date format with months and days of two digits +2.30
How do I stop R from prepending X to my numeric column labels? 0.00
R: legend expression how to add comma between two values and how to... -1.20
Moving variance in R -1.07