flodel

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flodel has asked 48 questions and find answers to 455 problems.

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flodel questions

unconditional warnings when recycling
conditional inclusion of arguments in a function call
automatically detect date columns when reading a file into a data.frame
why does `x[0]` return a zero-length vector?
Why does `a ^ b` return a numeric when both `a` and `b` are integers?
preserve old (pre 3.1.0) type.convert behavior
setting environment variables programmatically
`as.na` function
Why are some of the logical operators so slow?
"replace" function examples

flodel answers

R: how can I get the Row sequential ID when the number appears again?
Count the number of negative values at the end of a vector
confusionMatrix function and different sized matrices
subset() a factor by its number of observation
Add missing columns to an R table
R conditional replace with '[' and without subset()
How to make R script takes input from pipe and user given parameter
R - Connect Scripts via Pipes
merge data frames based on non-identical values in R
euclidean distance between vectors grouped by other variable in SPSS, R or Excel