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sindri_baldur

Rating
1543.60 (10,175th)
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8,049 (19,576th)
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Title Δ
Summing only the available columns in a data frame +2.00
Convert into a loop in R 0.00
extracting names and numbers using regex -1.46
Replace values for specific rows from another row using a condition +0.37
R string operation : How could i optimize this one? +2.61
how to separate a column into multiple columns and change the resul... -0.67
How can I replace "|~||~||~||~|" with a blank in R? +0.53
R Filling missing values with NA for a data frame +0.36
rbindlist a list column of data.frames and select unique values -0.73
Capture the column index in R or excel for a series of data for a c... +1.90
Gap size calculation in time series with R -1.93
split string and concatenating to remove a portion of string +2.28
Sum rows with specific criteria in r +0.56
Find column index where row value is greater than zero in R -1.34
Dataframe: descending sorting not working +0.22
R - getting characters after symbol -1.83
Exact matching of multiple patterns with r -0.95
How to calculate running total for prior years in R? +1.47
How to replace days of weeks as weekdays and weekend in r? 0.00
Clustering rows by group based on column value -0.95
How to do arithmetics on values of a column according to unique pai... +2.23
Find all records which have multiple values in a column in R +0.55
Identify duplicates in a df in a particular column in R 0.00
Index/matching based on two columns in R, is it possible? -0.77
Concatenate consecutive rows in R using data table -0.96
R mutate multiple columns with if statement -1.67
Convert an integer to a string in R +2.43
loop through a column and add the last values in r +0.09
dplyr: list of data frames output without for loop +0.40
Counting couples in array with loop in r -0.76
keep original variable name when do grouping summary using summariz... +0.93
Getting the first and the Last value of each day in R -1.95
checking starting and ending index of NA in dataframe in R -1.00
ColSum of Characters -1.13
Regular expression to extract one string without prefix or suffix s... -0.28
Combining two (boolean) categorical factors two new one +2.19
How to extract specific strings along with their corresponding nume... -0.64
how to extract year from filenames in R -1.61
$ sign Significance in R while using dataframes 0.00
Copy preceding row if condition is met -1.51
How to add only one observation at a time amongst several observati... 0.00
Split names and create matrix in R -0.97
Sample in for loop R +0.57
Remove recurrent pattern in a string, but only the last time observ... 0.00
Strip out numbers from text: R -1.89
Replacing the nth number in a string +0.09
R script to insert images into Google Sheets 0.00
Is there an efficient way to check whether an R character vector co... -1.03
Get rid of words that have fewer than 3 or more than 6 characters +2.59
Replace the whole word that starts with a pattern using gsub in R -1.29