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talat

Rating
1671.29 (315th) 		Reputation
53,631 (1,824th)
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Title Δ
how to merge characters of a certain group into a new column in r -0.16
Row and column sums in R +0.05
How to use "with" and "tapply" to calculate a n... +4.06
Apply function only to certain level of factor? +4.07
Conditional increment of a partial value based on other field value... +0.08
Aggregate per two columns while outputting all maximums of a third... -1.90
Max from each of several dataframes +0.19
Adding same observations from 2 different groups. Plyr or tapply? 0.00
R - update t1 with count of t2 rows where two columns are the same... -2.23
Filter data frame by lowest common overlap in categorical variable... -3.32
How to get certain row of grouped data frame? +0.53
append multiple rows to data frame +0.42
How to save all used variables between functions in R +1.20
Impute missing data 0.00
Error in hist.default(OBJECTNAME$COLUMNNAME) : 'x' must be numeric 0.00
[modified]How to find the last value in a column meeting a conditio... -4.00
[modified]How to find the last value in a column meeting a conditio... +4.00
dplyr summarise: Equivalent of ".drop=FALSE" to keep grou... -2.67
grouped operations that result in length not equal to 1 or length o... 0.00
dplyr filter: Get rows with minimum of variable, but only the first... 0.00
Subset of a data frame with the penultimate values of one of the co... 0.00