Mark Heckmann

Mark Heckmann has asked 45 questions and find answers to 34 problems.

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About

I am a PhD candidate at the faculty of Psychology at Bremen University, Germany. More about me: www.markheckmann.de

Mark Heckmann questions

rgl: how to display the numbers of all opened rgl devices
.gitignored files still shown in RStudio
twitter bootstrap popovers for R shiny app - html is interpreted as text content - why?
How to properly handle timezone when passing POSIXct objects between R and Postgres DBMS?
reading SPSS file into R throwing error - error reading system-file header
using plotmath symbol in ggplot2 geom_text - legend is altered - why?
psych::principal - explanation for the order and naming of rotated (principal) components
serving static files with plumber package - files not found (404)
replicating an rgl viewpoint in lattice
generate (overlapping) sets of mutually similar elements from binary similarity matrix [duplicate]

Mark Heckmann answers

Generate random number of missing values in R
remove all quotation marks from a data frame
Change timezone in a POSIXct object
making sure a function does not use a global variable [duplicate]
How to use the "[" function to select a row / column of a matrix
Print/save Excel (.xlsx) sheet to PDF using R
Why apply() does not work on my dataframe in R?
knitr: how to use child .Rnw docs with (relative) figure paths?
selecting rows with specific conditions in R
Dynamic Variable naming in r