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Rating Stats for

Matt Dowle

Rating
1609.58 (1,416th) 		Reputation
48,330 (2,110th)
Page: 1 ... 5 6 7
Title Δ
Why is running "unique" faster on a data frame than a mat... -0.51
masking conflicts 0.00
R self reference +4.07
How to write the quantile aggregate function? +3.67
How to efficiently merge two datasets? +0.46
Is there an efficient way to get data.table to mimic ldply from ply... 0.00
fill gaps in a timeseries with averages -4.38
Can the R console support background tasks or interrupts (event-han... +3.60
Fastest way to replace NAs in a large data.table +4.71
How do you remove columns from a data.frame? +3.83
Why has data.table defined := rather than overloading <-? +3.74
When should I use the := operator in data.table? 0.00
Fastest way to subset - data.table vs. MySQL +3.22
How to avoid printing a package's author message? +3.85
Challenge: recoding a data.frame() — make it faster 0.00
Invoke R on a server to extract data, from within R session on host? 0.00
data.table and character vectors +4.37
join data based on a Date/Time range in R -1.86
reading csv files in a for loop and assigning dataframe names +4.84
Is there a way to suppress MOTD when starting up R? 0.00
Converting irregular timestamp data to regularly spaced data using R +0.28
Multicore and memory usage in R under Ubuntu 0.00
What's the fastest way to merge/join data.frames in R? +2.04
data.table and "by must evaluate to list" Error +4.00
How to do a data.table merge operation 0.00
long/bigint/decimal equivalent datatype in R 0.00
Tricks to manage the available memory in an R session? 0.00
How to sort a dataframe by column(s) in R 0.00