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Rating Stats for

Ronak Shah

Rating
1624.06 (999th)

Reputation
80,694 (1,021st)

Page: 1 ... 209 210 211 212 213 ... 233

Title	Δ
How to filter a data frame with conditions?	+0.11
Drop multiple columns based on a condition	+1.82
Calculating percentage of string occurrence in column	-0.64
How to calculate a row-wise count of duplicates based on (element-w...	+1.15
Return a Row Value given some Conditions in Rows	+0.32
Remove the first k-i elements from the ith entry of the list	-0.88
Dense ranking of column based on order of second column	+0.05
Cut off all numbers below "n" in a matrix	+1.99
have a list of months need to select latest for each person	+1.35
How to detect more than one regex in a case_when statement	-0.77
Average percentage change over different years in R	+1.44
Incorrect comparison of new data with old ones in R	+1.50
Create date (month) exeption for R script	0.00
dplyr mutate based on columns in a vector	-0.55
Split variable on every other row to form two new columns in data.f...	+1.46
Conditional replacement if the "correct" value exists	+0.96
For loops that check for empty range	+0.65
aggregate matrix rows based on groups given in a list	+1.96
How to add points and lines in ggplot for sums by years?	+0.33
Recode dates to study day within subject	+0.32
Calculate time difference on only months and days	+0.54
Mutate and case_when is giving NA's	0.00
How to standardize date column having two different date formats in...	0.00
Finding duplicate IDs based on the values of a column	-0.50
Count observations for each group within dynamic date-time range	0.00
calculate percentage of total for multiple columns	+1.50
Finding duplicates in a dataframe and returning count of each dupli...	+1.52
Group data by factor level, then transform to data frame with colna...	+0.46
Prefix/suffix column content with column names	-0.73
expand colnames to match the last known one	0.00
After full_join() how to replace NAs in one source with data from o...	-1.02
Nested loop to find most recent comment	-2.60
Filter a dataframe between two dates	0.00
Filter rows with earlier date than a row specified by another varia...	0.00
generate a vector between 0 and 1, with certain length and certain...	0.00
Extract characters bound by parentheses	-0.10
R - Conditionally select within duplicate IDs and index	-0.62
Remove rows with specific NA column	+1.72
Generate multiple dates from age segments	0.00
dplyr mutate + unlist issue	+1.01
Multiplying elements of a column in skipping an element after each...	+1.76
Filtering on grouped variable	0.00
Using variables from two different size datasets (and logic relatio...	0.00
Why TTR::SMA returns NA for first element of series when n=1?	0.00
Passing column names as string to with	+1.53
Use rollapply with xts object and an anonymous defined function	+1.34
merge 2 data frames in a loop for each column in one of them	+2.02
filtering observations from time series conditionally by group	0.00
Filtering a dataset and making a ggplot	0.00
Merging two rows into one header using R	+1.25