Jaap

Jaap has asked 13 questions and find answers to 329 problems.

Stats

About

My data.table-tutorial files.

Jaap questions

How do I connect the endpoint & startpoint of geom_line in a polar plot (coord_polar)?
How to prevent data.table to force numeric variables into character variables without manually specifying these?
Odd behavior when joining with multiple conditions
Melt a dataframe by pattern in colnames
Replace empty values with value from other column in a dataframe
How to extract keywords from Google search results page URL?
How to fill geom_polygon with different colors above and below y = 0?

Jaap answers

Find nearest value by group
How to tidy this dataset?
ggmap, using coord_cartesian pushes all points to the north
R cleaning csv file
Check condition and return name of column for which the condition is fulfilled
Multiply a number of columns by a specific column [duplicate]
Consolidate duplicate columns and concatenate column names
Adjust vector subset values according to certain rules
How to collapse all character vectors in a list
User defined parameters for ggplot2 geom_boxplot