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Sonny

Rating
1530.21 (18,331st)
Reputation
749 (196,757th)
Page: 1 2 3 ... 4
Title Δ
Reshape to long and complete with NAs -2.33
NA/NaN argument in for loop 0.00
Append files based on their names +0.48
How to throw out spaces and underscores only from the beginning of... -0.96
How to convert factor column in df to numeric strings per row? 0.00
How to calculate subtotals and add it to the same dataframe? -0.05
Calculating stretches of consecutive values -1.18
Count occurrences within subgroup using R -0.48
Add a day to a date AND time string +0.80
Generate data frame with parameters +1.50
How to replace missing values using Mean and Standard Deviation in R? 0.00
How do I count the number of occurrences of multiple character valu... +2.58
How to curl for extracting valid .zip file from redirecting link -0.55
how to extract a same name factor in many dataframe 0.00
Creating unique time measurement ID for each user based on date of... 0.00
Scrape data hosted on AWS S3 +1.97
Group rows in data.frame and find quantile 0.00
For loop to call a different function variable -0.54
R How to Search for String Pattern and Extract Custom character len... +0.44
How to extract last, unique and consecutive values from a data frame -1.34
How to generate a sequence of monthly dates from a data frame in R? -0.42
Can I use a variable as an explanatory variable if it is used to de... +0.45
Creating a count table of unique values when there are multiple val... -2.37
R remove rows with most zero values (unique and removing all rows w... 0.00
Calculations with dplyr based on specific factors and dates and sum... -0.56
How can I group website activity into sessions by user? 0.00
How do you add a column with row totals in DPLYR when the first var... -2.35
Extract the match content and merge them -0.36
R: Find and delete line with specific date 0.00
"undefined columns selected" when trying to filter data f... +0.45
How can i convert my column(character) to POSIXct to create time se... +0.08
String comparison in 2 adjacent rows of a data frame in R +0.03
How to extract a substring from a column of strings if it matches a... 0.00
Combining data frame based on data in each column in dplyr +1.03
Why Does Using ymd_hms Function Result in "All formats failed... 0.00
How to use fread in R for bigquery's exported *.csv format? 0.00
R function error when using a second & in a subset vector 0.00
Sum of Digits of a Column in R -1.23
How to get a count of rows based on the elements of a column of lis... -1.94
What is the memory efficient way of comparing two large dataframes +0.45
Select the most common value of a column based on matched pairs fro... +2.58
How to print \n as a text without creating newline within a quote i... 0.00
Spaces still present when str_replace_all from Stringr 0.00
How to delete rows with a unique ID from a panel data frame in R? +1.29
Collapsing group of strings into one string using an if statement w... -1.08
Filtering out time data from R data frame +2.60
How can I create a new column with the count of incidences of a cer... +0.16
Combined multiple operations in R using DPLYR 0.00
How to keep the values (dropping NAs) by groups? +1.40
Using eval(parse()) construction within dplyr +0.45