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Rating Stats for

Simon O'Hanlon

Rating
1586.06 (2,563rd)

Reputation
47,115 (2,196th)

Page: 1 2 3 4 ... 16

Title	Δ
Replace fourth occurrence of a character in a string	-0.12
melt.data.frame() changes behavior how POSIXct columns are printed	0.00
In R why is matrix a class but a vector is not?	-0.46
When subsetting rows with a factor with equal (==), NA's are also i...	+1.48
Pass a comma separated string as a list	-0.24
sum specific columns among rows	-1.15
converting a dataframe to a matrix	+1.83
split strings on first and last commas	+1.52
Add “delta” columns to a matrix, containing the difference values b...	-0.49
Extracting max values from different ranges within a vector	0.00
Pick out column with positive values in	0.00
How do I emulate outer + list?	+1.52
r - how to select a different number of observation within each group	+0.13
Make list of vectors by joining pair-corresponding elements of 2 ve...	0.00
R: Sum Complete.cases in one column grouped by (or sorted by) a val...	+0.37
Avoid the for loop by using an apply function	+0.40
R - create new variable using if statement	-0.32
Looping over numbered variables within a by= call of a data table i...	+1.12
cumsum along row of data.frame with NA in R	-0.38
Assign an object name to data.frames based on the values in a chara...	+1.39
R - Finding centroids of different id values	-0.27
Is there any way to fit a `glm()` so that all levels are included (...	+0.38
R splitting cells in table while preserving other information	+1.80
How to save the structure of my list of matrices from lapply-attack?	-2.04
How to vectorize a string fetching script having a nested for loop?	0.00
elegantly creating strings within sequence in R for ggplot2 axis la...	+0.39
Generating random numbers from a truncated Gaussian	+0.35
How can I efficiently generate a dataframe of simulated values?	+0.39
Speed up a loop in R	0.00
Align symbols in the legend	-0.15
Extract R^2 from lm summary into data.frame	0.00
Combine multiple cells into one cell in R	+0.37
How to delete characters in a string according to a second string?	+1.31
ggplot2 facet_grid() strip_text_x() different colours based on factor	0.00
Counting number of sequences in a vector	0.00
Combining columns conditionally using data.table in R	+1.53
How to reduce the length of the string to 10 words in R?	0.00
Unable to use eval(parse(...)) in data.table [,:=] function	0.00
finding the mean and replacing the values in the same dataframe in R	+0.37
iteration count display in mapply	-2.08
How can I scale an array to another length saving it's approximate...	-0.18
Reading, recoding, subsetting, and reshaping sequentially labeled d...	0.00
R programming: Difference between vectors	+0.49
Moving a list in a .csv file in R; cannot use `unlist` properly	+1.61
Matching parsed expressions in R	0.00
How to set ggplot alpha (transparency) value for all points at once	0.00
R : Removing duplicates in vector but preserving order	+0.56
Fast reading and combining several files using data.table (with fre...	0.00
How to effectively remove last N rows in data frame with the arbitr...	+0.39
Elegant way to count number of elements in each column of a matrix...	+1.52