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Gopala

Rating
1481.03 (4,492,757th) 		Reputation
7,143 (22,429th)
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Title Δ
R programme: new variable from the sum of the greater values of oth... +1.33
Impute most frequent categorical value in all columns in data frame -0.94
Counting the distinct values for each day and group and inserting t... -1.31
Getting a list of all substrings in a data frame column in R +2.45
histogram from two column data: number of entries and number in R 0.00
dplyr: grouping and summarizing/mutating data with rolling time win... -1.10
Computing values for R dataFrame cells without using for loops +1.29
R - dplyr - ifelse and filter 0.00
How to change a value in a column dependent on a grepl in R 0.00
Are all dates in order +0.80
How to calculate the percentage of one column, by grouping variable... 0.00
Converting slow "WHILE" loop to "apply"-type fu... -0.40
sort by first group element dplyr +0.59
R All possible sub-combinations +0.08
r lookup function returning negative dates 0.00
R (dplyr): Sum list of values relative to first value in list +0.08
Check if all rows are the same in a matrix +1.54
How to randomly assign values to a column using Xi proportion for i... 0.00
Removing rows from a matrix based on column entries +0.59
Resample groups of rows based on a grouping variable in R 0.00
how to vectorize a for loop in r with conditionals +0.59
R check if date is 2 years apart -1.14
Removing rows based upon frequency of factor/categorical value in a... 0.00
R: get min value of a column conditional on a categorical variable +0.59
R Time Series: Median of few minutes at the beginning and end of ce... 0.00
How to produce a binary column in R from an existing numerical colu... -0.40
Make my R code run faster (nested loops) 0.00
Breaking down a timed sequence into episodes -0.39
filtering out lowest numbers in a column by group -1.36
Dplyr rowwise access entire column -1.37
Sort a dataframe based on a character column containing letters fol... +1.61
R loops - is there a more efficient way? +2.32
R print values in new column based on the values in two other columns -0.41
Using nested for loops to create a data frame in R +2.09
R - Loop with If statement and tracking the number of successes -0.67
Getting "invalid 'type' (character) of argument"... -0.79
Aggregate data.frame for each day -0.15
Faster looping in r -0.43
How to generate strings from a data frame of word frequencies +2.65
R: Summing rows in a loop based on rowname +0.59
R raw text file missing lines after read 0.00
Easy way to transform data frame in R - one variable values as sepa... +0.59
Calculate the mean of values assigned to each quantile in different... -0.37
Frequency table with double condition in R 0.00
Why does parse_date_time have incorrect results for mm/dd/yyyy form... 0.00
Subtract values of a single row from all relevant columns in a data... -0.64
R count the occurrences of row string values in another row string 0.00
Reading one double quotation mark in string field from txt file 0.00
Create a new column that counts the number of a sub-string in a str... +0.39
Combining starts_with with group_by in dplyr +0.64