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Roland

Rating
1662.46 (396th)
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105,284 (681st)
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Title Δ
Compute differences relative to start date by group 0.00
R Matrix. Set particular elements of sparse matrix to zero. 0.00
Why does a one-to-many merge of two data.frames with a lubridate in... 0.00
Sorting a list of unequal-size vectors in r +1.87
R programming: cache the inverse of a matrix 0.00
About the use of Encoding function 0.00
Print method with user classes 0.00
For Loop chunking in R +1.38
R grid.arrange: nrow * ncol >= n is not TRUE 0.00
How to trap wrong or undefined arguments in R function calls when e... 0.00
How to get current seed in R 0.00
Using windows environment variables in R's setwd() 0.00
as.Date from 'YYYY.mm' format +1.06
rowSums with all NA +0.30
Lm across many columns in a dataframe in R +0.56
R curve fitting (multiple exponential) with NLS2 and NLS +1.67
R: ggplot_build is included in function 0.00
Speed up vector-creation +0.42
Graph number of TRUE FALSE vs corresponding items +0.31
Accessing the function that is being called from within the function 0.00
Replace NA values with adjacent value in the time series or in the... 0.00
Replicate SAS weighted frequencies and chisq-test in R 0.00
Combining data frames into one data frame and keep empty data frame... 0.00
Rotate entire ggplot() without rotating any text R -0.71
R: Combining Nested List Elements by Name -1.31
how to use coord_carteisan and coord_flip together in ggplot2 +0.31
Multiplication of several vectors +1.72
How can I replace a factor levels with the top n levels (by number... 0.00
R Date origin for formatting 0.00
Environment expansion in R 0.00
integrate from 0 to a variable in r 0.00
data consistency in R: table vs == +1.39
Treat arithmetic operators as functions 0.00
'x' must be numeric histogram in R 0.00
Convert string of numbers into numeric data type in R +0.11
R difference between vector elements, split into columns +0.31
Multiple different random samples in R 0.00
The most efficient way to get algorithm complexity table 0.00
Set last level as reference category for all regression analyses 0.00
how to determine class of an object 0.00
Create and output multiple plots from list -0.22
How to avoid a double for loop when accessing all combinations of c... +1.28
how to calculate 5 days cumulative using apply family in R +1.05
nls troubles: Missing value or an infinity produced when evaluating... 0.00
solving set of linear equations using R for plane 3D equation 0.00
Converting day of week from integer to character string in R +0.32
Could not find function "year" after installation from zi... 0.00
How do I replace column values in data.frame? +1.05
Discrete axis ticks and labels shifted compared to actual values -0.17
ggplot2 factor variable na -0.93