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Rating Stats for

eddi

Rating
1623.32 (1,012th)

Reputation
42,998 (2,509th)

Page: 1 ... 10 11 12 13 14 ... 18

Title	Δ
Efficiently computing a linear combination of data.table columns	+1.86
removing rows when flipped in two coloumns	-0.22
data.table `:=` assignment expressions with dynamic inputs (existin...	+1.98
Changing the dimensions of a data frame in R	0.00
combine lists in R without knowing beforehand the number of lists t...	+1.99
roll data.table both forwards and backwards simultaneously	0.00
data.table subsetting by NaN doesn't work	+0.93
Subset dataframe where date is within x days of a vector of dates i...	+1.87
r data.frame create new variable	+1.84
Aligning like rows in a character matrix in R	+0.46
Function gives me always a trailing `NULL` back	-0.01
Sum up with R base	0.00
Multiple random selection in R	0.00
extract maximal set of independent columns from a matrix	+1.19
Is there a simple way to achieve something similar to `x[,c:=mean(a...	-1.03
Efficient use of functions on long data.frames in R	+2.53
Avoiding eval(parse(text)) When Operating On Similarly Named Columns	+0.92
Regular expressions to re-order strings in a field	+1.48
R - evaluate the expression as a string	+0.48
Converting list of varying-length elements to dataframe	0.00
Perform a semi-join with data.table	+1.15
selecting only the 0s and the first 1 from a sequence of many 0s an...	+0.62
R: Calculations over consecutive days?	0.00
R bootstrap statistics by group for big data	+1.81
Get environment identifier in R	0.00
Export of means in a dataframe generated by describe()	-0.97
manipulating a data frame to extract information from columns names	+0.85
select only rows with finite values in data.frame R	0.00
Combining matrices by alternating columns	+1.46
fill rows downward for a column with NAs (with R base or data.table)	+0.47
Flat Apportionment of values across time periods	0.00
Efficient ways to reshape huge data from long to wide format - simi...	0.00
Adding corresponding elements in a list in R	0.00
Creating a new variable that aggregates two years of observations	+0.51
Counting algorithm for big data in R	+2.23
subsetting matrix with id from another matrix	-0.66
Create columns of varying length from rows in R	-0.84
How do you silently save an inspect object in R's tm package?	+0.51
How to find the length of the binary file	+0.68
How to efficiently turn a particular element (which is a scalar) of...	-0.14
Split dataframe based on one column in r	0.00
How to speed up this ddply?	0.00
check if vector contains another vector	+0.34
hold range in data.frame (or table)	+1.91
Weird R nested for loop behavior	+1.57
Change TRUE and FALSE to Yes and No	-0.93
Why is [- subsetting (i.e. deletion) of columns not possible with n...	-0.85
R: Calculate moving maximum slope by week accounting for factors	+0.69
Behavior of assignment operators ('=' and '<-') inside a functio...	-0.61
Extract capture group matches from regular expressions? (or: where...	-1.27