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Rating Stats for

Ricardo Saporta

Rating
1533.06 (16,004th) 		Reputation
41,631 (2,640th)
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Title Δ
"Merge" table row-by-row in R -0.39
Get a value from a data frame and add it to a new data frame 0.00
grep in R with multiple numerical or defined variables -0.63
R - as.numeric matrix -0.39
Condensing factors using grep while excluding certain results +0.38
how can I eliminate a loop over a datatable? -0.46
Count Daily Observations by Week +0.94
Count unique elements in data frame row and return one with maximum... -0.17
Applying functions to dataframe or multiple lists 0.00
Why does mapply repeat the same list multiple times? 0.00
Text Line Count in R -0.96
in r, how can one trim or winsorize data by a factor +2.31
Logical operators - short (relational) vs long (vector) forms -0.04
Change column values for certain counter values +0.55
Interpretation of Pearson Correlation Test in R 0.00
Loops and Vector for generating URLs; digits in loop +0.66
R applying to a line +2.43
does white space slow down processing +0.15
How to remove or re-tag self-closing XML tags when coercing XML cod... +0.31
sum of two lists with lists in R +0.32
summing every n points in R +0.30
Prevent partial argument matching -0.01
Insert rows based on column entry and determine the entry of the in... 0.00
Select rows from a data frame using an array in R -1.23
Creating Monte Carlo data for Dummy Variables in R +2.80
as.numeric with comma decimal separators? -0.35
aggregation with data.table in R +2.82
Cumulative sequence of occurrences of values -0.62
Move rows with inf to New matrix in R -1.21
multiple functions in a single tapply or aggregate statement +0.65
How to Unearth the Buried Regression Line in GGPLOT +0.08
Use object names within a list in lapply/ldply -1.09
R: Grouping two rows into a new row based on factor identity +2.75
Targeted variable recoding in R +2.55
How to access parts of a list in R +1.49
Warning Message Line Number R -0.79
In R, is there any way to share a variable between difference proce... 0.00
Reduce computing time for reshape +1.82
complicated reshaping +0.34
Problems using subselect +0.59
multiplying two data frames +0.59
Cross product of each row of a matrix by another matrix in R -0.58
How does one do a full join using data.table? 0.00
Inserting new rows to dataframe without losing format 0.00
adding as integers instead of list elements in R 0.00
read json into R 0.00
Using ifelse with transform in ddply -1.30
Subsetting with R and complex data frames in nested lists +0.75
Append data sets, create new column identifying which data set it c... -0.10
plot for double loop in R -0.62