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Rating Stats for

Mike.Gahan

Rating
1512.57 (54,705th) 		Reputation
3,386 (49,843rd)
Page: 1 2
Title Δ
How to subset a data frame by similar coordinates of a plot in R? 0.00
ifelse data.table multiplication while keeping NA values as real 0.00
How to create a new variable that contains three calulations that a... +1.59
Calculating the maximum of sub-vectors of a larger vector -3.19
R- Speed up calculation related with subset of data.table 0.00
Conditional calculating the numbers of values in column with R +0.04
Efficient method to smooth data in R 0.00
Return df with a columns values that occur more then once -0.38
R: Random sampling an even number of observations from a range of c... -4.26
Rolling Sum by Another Variable in R +5.19
Apply grouped model back onto data -2.74
Multiple aggregation in R with 4 parameters 0.00
Using data.table's fread with varying lengths for blank missing val... 0.00
"Not Join" in R +4.00
How to pass different arguments to each group in grouping of data.t... -2.95
Extracting subset of data.table based on date around a given day of... 0.00
"Nested" relative frequency in 3 way flat contingecy tabl... -3.01
Replacing base values in R by mean values from multiple rows +0.25
How to return monthly minimum values for each year that are least 1... -1.59
Create lags with a for-loop in R -0.14
How to calculate stock value from flow data in r? +4.10
Computing Colwise Means on a Given Interval +0.96
How to calculate duration from monthly enrollment data? +4.00
r - how to select a different number of observation within each group +2.60
in R data.table - mark/change column based on date by group 0.00
How to find correlation for every n rows in R? -1.37
expand large data frame in R efficiently -2.26
nested loop doesn't work -3.54
Rolling joins (LOCF) in Postgres -4.72
how to determine trend of a series of values in R +0.22
R Markdown File Is Not Giving Me the Output -3.91
select unique combinations of some columns in R, and random value f... -0.30
Parallelization of merge by row.names of two large matrices 0.00
With data.table, concatenate variables into a single variable 0.00
Creating a bunch of lagged variables in data.table at once 0.00
R Need to compare rows in R based on an ID and a non- Unique second... +0.07
Running a time series lag in for loops in R 0.00
Make function and apply to readed data in R? +3.97
Need Help Understanding r data.table Behavior 0.00
R - count how many rows in a data frame have same value and date is... +3.30
R - count how many rows in a data frame have same value and date is... +3.30
How to improve randomForest performance -0.16
distribution comparison for large number of data sets 0.00
Elegant, Fast Way to Perform Rolling Sum By List of Variables -4.15
Moving sum over date range 0.00
mclapply not using multiple cores 0.00
Compute rolling sum by id variables, with missing timepoints 0.00