mnel

mnel has asked 2 questions and find answers to 560 problems.

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Biostatistician, NSW Health

mnel questions

How do I profile code when using knitr?
assigning by reference into loaded package datasets

mnel answers

Difference between complete.cases and !is.na
How do I update a single row in each group?
Why is it faster to evaluate in `j` than with `$` in a `data.table`?
ggplot2 stat_binhex(): keep bin radius while changing plot size
Creating transition-based sequences from state-based sequences
"Bin" continuous values in ggplot2 based on criteria to obtain more distinct colours (like factor level coloring)?
confusion over how duration vs. periods work in lubridate with month addition
Large .img file processing in R (GIS)
R data.table subsetting within a group and splitting a data table into two
smooth.Pspline wrapper for stat_smooth (in ggplot2)