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Cole

Rating
1481.20 (4,492,109th) 		Reputation
471 (286,697th)
Page: 1 ... 6 7 8 9
Title Δ
How to find the lowest value in a data frame matching specific crit... 0.00
Substracting means of the elements from list +1.62
Benchmarking datatables in R using lapply, is it slower? 0.00
How to calculate average by excluding first 300 measurements in Gro... +4.29
Replicate rows based on 2 "times"-columns and set values... +1.65
Optimizing dplyr summarise() with multiple sum() on a large dataset +1.10
Assigning mean value calculated for one group to the rows of anothe... -2.70
How to increase performance of loop operation 0.00
Rolling Sum for number of questions solved for past 7 days by every... -2.67
How to boost up a for-loop 0.00
How can I create a function that counts the number of co-occurrence... +0.40
Using tidyr top_n to select by a variable and include NAs 0.00
Subset of columns to dummy variables using last row in case of ties -3.70
Accessing/indexing in a 2-d dataframe +0.25
Is it possible to unlist() listed data.frame while keeping other co... 0.00
How to find a point in a vector where the value begin to plateau 0.00
Why isn't my code working inside a function I created, but work... 0.00
Save the output of a for loop in R -0.79
Optimize performance for finding ranges in tibble/data.frame +5.34
How to aggregate the data with 5-min-interval for each group? -3.72
Count list elements and only keep those appearing x times -1.05
select() transformed/new variables inside one mutate() +0.72
Counting which products have been bought together +5.06
Combine 2 columns in a new table and remove duplicates -0.04
efficiency in a row-wise for loop and implementation with purrr 0.00
How to add missing dates and populate values inside groups with ... -2.40
How to move up the values of each column in a matrix in R -2.90
For loop to filter by lat every 5 decimal places +0.69
How to extract duplicate values in each column separately? +0.30
Is there an R function for identifying 'n' matches in each... -3.70
How to compute P values for increasing sample size using a loop? -2.86
How can I save an Excel sheet from R without blank lines? 0.00
add a counter to lapply(do.call) - R +0.29
Minimum difference based on group-index on two data frame -1.64
Filtering ID's based on specified difference in values +0.47
Is there an R function which can replace a loop which makes use of... 0.00
Generate a dummy variable satisfying a condition for the same indiv... -3.53
Replacing multiple observations from one column with values from an... -3.58
How to recursively add text to a data frame output from lapply? +0.88
How to obtain all results from a for loop +4.29
How to speed up sequential analysis in R? 0.00
Fastest way to compute this triple summation in R -3.45
Join two tbls of different size by factors in one and position of a... -3.90
Contrained optimization [Maxima] R 0.00
How to use R to find the smallest positive solution to cos(x + b) = a -1.01
Deleting repeated information in a column based in a value of anoth... -2.34
How to sum column data every nth row, including non numerical data... -1.18
Find lag between non-consecutive observations -1.75
Merging two matrices with different sizes -3.48
Rolling Mean By Group Dplyr/data.table -0.43