library(RTutor)
#> Lade nötiges Paket: shinyEvents
#> Lade nötiges Paket: shiny
#> Lade nötiges Paket: restorepoint
#> Lade nötiges Paket: markdown
#> Lade nötiges Paket: whisker
#> Lade nötiges Paket: stringr
#> Lade nötiges Paket: stringtools
#> Lade nötiges Paket: data.table
#> Lade nötiges Paket: tibble
#> Lade nötiges Paket: dplyr
#> 
#> Attache Paket: 'dplyr'
#> The following objects are masked from 'package:data.table':
#> 
#>     between, first, last
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union
#> Lade nötiges Paket: dplyrExtras
#> Lade nötiges Paket: dtplyr
#> 
#> Attache Paket: 'dplyrExtras'
#> The following object is masked from 'package:dplyr':
#> 
#>     mutate_if
#> Lade nötiges Paket: shinyAce
#> Lade nötiges Paket: shinyBS
#> Lade nötiges Paket: hwriter
#> Lade nötiges Paket: RCurl
#> Lade nötiges Paket: knitr
#> Lade nötiges Paket: jsonlite
#> 
#> Attache Paket: 'jsonlite'
#> The following object is masked from 'package:shiny':
#> 
#>     validate
#> Lade nötiges Paket: DT
#> 
#> Attache Paket: 'DT'
#> The following objects are masked from 'package:shiny':
#> 
#>     dataTableOutput, renderDataTable
#> Lade nötiges Paket: memoise
#> Lade nötiges Paket: yaml
#> Lade nötiges Paket: rmarkdown
#> Lade nötiges Paket: rmdtools
#> Lade nötiges Paket: htmltools
#> Lade nötiges Paket: codeUtils
#> Lade nötiges Paket: commonmark
#> 
#> Attache Paket: 'rmdtools'
#> The following objects are masked from 'package:shinyEvents':
#> 
#>     random.string, sc
#> The following object is masked from 'package:base':
#> 
#>     format.data.frame
#> Lade nötiges Paket: rstudioapi
#> 
#> Attache Paket: 'RTutor'
#> The following objects are masked from 'package:rmdtools':
#> 
#>     chunk.opt.string.to.list, copy.non.null.fields, examples.read.yaml,
#>     format.vals, html.table, is.true, mark_utf8, nlist,
#>     parse.block.args, parse.chunk.args, print.yaml, read.yaml, sc,
#>     signif.or.round, yaml.bool.handler.no, yaml.bool.handler.yes
#> The following objects are masked from 'package:codeUtils':
#> 
#>     find.funs, is.assignment, substitute.call
#> The following objects are masked from 'package:shinyEvents':
#> 
#>     autcomp.function.args, autocomp.cols,
#>     autocomp.find.current.function, autocomp.js, autocomp.vars,
#>     display, find.varname.at.end.of.string, fun.arg.names, sc,
#>     set.autocomplete.list
#> The following objects are masked from 'package:utils':
#> 
#>     data, example
#> The following object is masked from 'package:base':
#> 
#>     deparse1