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Rating Stats for

Ronak Shah

Rating
1624.06 (999th)

Reputation
80,694 (1,021st)

Page: 1 ... 220 221 222 223 224 ... 233

Title	Δ
cumsum for unique value using dplyr mutate	+1.44
Reverse count vector elements when sequence occurs	-1.17
Challenge: Recode data from Alpha to Non sequential Numeric	+2.22
multiply a data.frame by a column with matching condition	+1.88
sum by group, but exclude values below designated id	-1.41
Regular expression for separated items with comma	-1.04
NA as result of operation when all elements are NA	+1.94
All variables not read from data pipeline - dplyr	+0.48
loop to multiply across columns	+0.50
Subset a dataframe with non-existing column names	+0.71
List of dataframes with consecutive columns	-0.05
Return value from subset of rows	+0.46
Group_by then filter with dplyr	-0.18
How to extract subset of list of data frames and row bind them into...	-0.61
populating a vector by passing a logical test over a list	0.00
Converting a categorical variable to multiple binary variables	+0.50
Extract vectors from a list based on given elements	+0.46
Insert blank space between letters of word	+1.91
Select data frame based on condition without for loop	+0.47
How to give a value in column based on other columns	0.00
Repeat pattern in R (integers down and up)	+1.84
Creat new column and calculate each element with conditions in r	0.00
List directories up to the level of my files only	+1.72
cumsum according to certain restricts in r	+0.48
R - how to sort named list of character vectors	0.00
Subset dependent on a value being within a range	+0.48
Is there any way to extract year and month from date data in R by t...	-2.09
Flag observations before and after a specific value in another column	+0.46
Replicate rows and columns	+2.36
How to separate a column in dplyr based on regex	0.00
Combine rows with consecutive dates into single row with start and...	-0.22
How to extract all the rows if a level in one column contains all t...	+0.50
R - dplyr summarizing and cleaning a data frame with multiple groups	+2.15
Using dplyr first function but ignoring a particular character	+1.83
Find number of consecutive scores in R	+1.83
Insert specific elements in specific locations of a list	0.00
How to separate same group ID by date in and then order it by time...	+0.29
Decremental multiplication in R	-2.07
Remove specific last character from string	+1.92
Match values to nearest value in another array in R	0.00
Using lapply to match list elements and dataframe values (lookup-ta...	-2.31
Replace values if two columns match in R	+1.95
R: Identify non-identical elements in two vectors	+0.48
Find values from one column in another column according to ID in r	0.00
Unlist data frame column and pasting them together	0.00
R remove all but the first occurence	+1.35
Loop over columns in DF and calculate sum based on condition for ev...	-1.27
name a df column from a character string contained in a list	0.00
What cause format change when copy and paste in rstudio?	0.00
R: Subset a data frame based on a date column, within a factor leve...	+1.70