Henrik

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Henrik has asked 17 questions and find answers to 415 problems.

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Henrik questions

Do we need to convert single elements of j to a list when the overall result of j is a list anyway?
Expanding window (cumulative calculation) in data.table: how to improve performance
Subset a list - a plyr way?
Remove legend labels using label = FALSE in guide_legend, or labels = NULL in discrete_scale
Brew and knit one PDF report split by variable with special characters (å æ ø) - encoding issue
Parse dates in format dmy together with dmY using parse_date_time
Changing factor levels on a column with setattr is sensitive for how the column was created
Use `j` to select the join column of `x` and all its non-join columns
Align different plot shapes
How to avoid that anytime(<numeric>) "updates by reference"?

Henrik answers

For each value of one column, find which is the last value of another vector that is lower
Loop to convert decimal comma (,) into dot (.) to change class of data.frame columns
Group individuals based on direct and indirect relationships
Get row when a value first exceeds a threshold and then remains above it
bartlett.test fail with formula col1~col2+col3
Combine legend for several stat_function lines and raw data points
Find the closest enclosing FALSE value positions
Reorder data.table rows so that no two consecutive rows are the same
Save plot as SVG removing stroke on filled symbols
Hyphen (`-`) in R package versions