Check for Loaded Packages

Usage

p_loaded(..., all = FALSE, char, character.only = FALSE)
p_isloaded(...)

Arguments

all

logical. If TRUE will show all packages including base install; FALSE will show all packages excluding base install packages that install when R loads.

char

Character vector containing packages to load. If you are calling p_loaded from within a function (or just having difficulties calling it using a character vector input) then pass your character vector of packages to load to this parameter directly.

character.only

logical. If TRUE then p_loaded will only accept a single input which is a character vector containing the names of packages to load.

...

Optional package names. Adding package names will check their individual load status.

Examples

## <strong>Not run</strong>: 
# p_load(lattice, ggplot2)## <strong>End(Not run)</strong>
p_loaded()

 [1] "pacman"           "staticdocs"       "highlight"        "devtools"         "qdap"             "RColorBrewer"    
 [7] "qdapTools"        "qdapRegex"        "qdapDictionaries" "ggplot2"         

p_loaded(all=TRUE)

 [1] "pacman"           "staticdocs"       "highlight"        "devtools"         "qdap"             "RColorBrewer"    
 [7] "qdapTools"        "qdapRegex"        "qdapDictionaries" "ggplot2"          "stats"            "graphics"        
[13] "grDevices"        "utils"            "datasets"         "methods"          "base"            

p_loaded(ggplot2, tm, qdap)

ggplot2      tm    qdap 
   TRUE   FALSE    TRUE 


p_isloaded(ggplot2)

ggplot2 
   TRUE 

p_isloaded(ggplot2, dfs, pacman)

ggplot2     dfs  pacman 
   TRUE   FALSE    TRUE 

## <strong>Not run</strong>: p_unload(lattice)

See also