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Rating Stats for

Jaap

Rating
1662.99 (393rd)

Reputation
58,717 (1,592nd)

Page: 1 ... 5 6 7 8 9 ... 23

Title	Δ
Tidy up and reshape messy dataset (reshape/gather/unite function)?	0.00
Create Binary column based on condition using data.table	+1.36
How to conditionally partition observations into groups?	0.00
Building contingency table	+0.31
How to arrange by the last colname with dplyr	+1.21
The data.table way to perform operation on columns grouped by last...	+2.12
Convert timestamps in Google Finance stock data to proper datetime	-2.23
Convert list of lists to data.frame	-0.16
Geosphere/dplyr: create matrix of distance between coordinates	+1.14
return number of specific element of vector based of its name	+0.30
Linetypes missing for one group ggplot2	0.00
Transform complex data frame	+0.93
Find rows with a sequence of consecutive column values	+1.41
Transpose list rows into a dataframe	+1.71
How to expand/aggregate a data.table while including the existing r...	0.00
Conditional creation of column with increment in data.table	0.00
Make all elements unique in a dataframe	+1.17
trimws bug? leading whitespace not removed	-0.37
Adding data to a data.frame to complete a sequence	-0.68
Add new column to a data frame based on an existing value	+0.32
How to add seasonal dummy variables?	+0.83
Calculate the max and the min difference between two adjacent numbers	+1.09
Subset rows of a data frame that contain numbers in all of the column	0.00
Conditionally replace elements of a vector based on an index	+0.61
row wise distance calculation	0.00
Collapse species matrix to site by species matrix	+0.38
Filtering rows in dataframe based on partial column name and mathem...	-0.87
Removing values in a character before / in data.table and placing t...	0.00
Convert data with one column and multiple rows into multi column mu...	+0.82
Row wise percent difference from reference row by group data.table	+0.35
Count of values with a condition and group	-2.67
How to Duplicate Rows Based on Character in a String of Multiple Co...	-0.73
Use Multiple for loop to get combinations of all elements	+0.62
Skipping rows until row with a certain value	-1.84
Merging two data set using time stamps	+0.30
Turn long dataset of classes taken into wide dataset where variable...	+1.13
How to keep join column unchanged in data.table non-equi join?	0.00
Two data.tables number of matching columns	+0.73
Add missing rows within combinations of factors	+0.32
Finding isotopes of find corresponding string with two differences...	0.00
Split a column into separate columns using regex	+1.39
Join data frames based on item presence in a transaction	+1.19
Match row value in df1 with column name in df2 to return same row v...	+0.31
How to check against a value range in a mapping table?	0.00
'unlist' column in data.table	-2.05
Splinting one cell to different cells	0.00
Replace NAs using mutate_at by row mean	0.00
Read multiple csv data and create new columns at one time	+1.28
Date/Time Separation	0.00
Formatting strings in a character vector of a data frame	-0.36