tidyverse tidyr dplyr detach search searchpath library library(help= )

 

> search()   

> searchpaths()    # インストール場所の絶対パスを得る

# あるライブラリ中のオブジェクトの一覧を見る　library(help=パッケージ名) 

# もちろんそのライブラリが既にインストールされている必要があります。

> library(gstat)       # ライブラリ gstat をロード

> library(help=gstat)　# gstat 中のオブジェクト（関数、データセット）の一覧を得る

> library(tidyverse)
─ Attaching packages ─────────────────────────────────────────────────── tidyverse 1.3.0 ─
✓ tibble  3.1.0     ✓ dplyr   1.0.5
✓ tidyr   1.1.3     ✓ stringr 1.4.0
✓ readr   1.4.0     ✓ forcats 0.5.1
✓ purrr   0.3.4     
─ Conflicts ───────────────────────────────────────────────────── tidyverse_conflicts() ─
x stringr::boundary() masks strucchange::boundary()
x dplyr::filter()     masks stats::filter()
x dplyr::first()      masks xts::first()
x dplyr::lag()        masks stats::lag()
x dplyr::last()       masks xts::last()
x dplyr::select()     masks MASS::select()

> data(mtcars)
> mtcars <- as_tibble(mtcars, rownames = "model") %>% mutate(cyl = as.character(cyl))
> g <- ggplot(mtcars, aes(x = mpg, y = wt, color = cyl)) +
+     geom_text(aes(label = model), family = family_sans, fontface = "plain") +
+     labs(x =paste(family_serif, "ボールドを使用"), y = paste(family_serif, "イタリックを使用"),
+          title = paste(family_serif, "ボールドイタリックを使用")) +
+     annotate("text", x = 10, y = 2, label = paste(family_sans, "標準書体を使用"), hjust = 0) +
+     theme(
+         text = element_text(family = family_serif, face = "plain"),
+         title = element_text(face = "bold.italic"),
+         axis.title = element_text(face = "italic"),
+         axis.title.x = element_text(face = "bold")
+     )
> g
Error in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  : 
  polygon edge not found
In addition: There were 50 or more warnings (use warnings() to see the first 50)
> g <- ggplot(mtcars, aes(x = mpg, y = wt, color = cyl)) +
+     geom_text(aes(label = model), family = family_sans, fontface = "plain") +
+     labs(x =paste(family_serif, "ボールドを使用"), y = paste(family_serif, "イタリックを使用"),
+          title = paste(family_serif, "ボールドイタリックを使用")) +
+     annotate("text", x = 10, y = 2, label = paste(family_sans, "標準書体を使用"), hjust = 0) +
+     theme(
+         text = element_text(family = family_serif, face = "plain"),
+         title = element_text(face = "bold.italic"),
+         axis.title = element_text(face = "italic"),
+         axis.title.x = element_text(face = "bold")
+     )
> g
Error in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  : 
  polygon edge not found
In addition: Warning message:
In grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  no font could be found for family "Hiragino Mincho ProN"
> last(dmdf[,13],10)   # blocked by dplyr
Error in order(order_by)[[n]] : subscript out of bounds
> detach("package:tidyverse", unload=TRUE)
> last(dmdf[,13],10)
Error in order(order_by)[[n]] : subscript out of bounds
> search()
 [1] ".GlobalEnv"           "package:forcats"      "package:stringr"      "package:dplyr"        "package:purrr"        "package:readr"       
 [7] "package:tidyr"        "package:tibble"       "package:RColorBrewer" "package:ggplot2"      "tools:rstudio"        "package:datasets"    
[13] "package:beepr"        "package:forecast"     "package:mondate"      "package:vars"         "package:lmtest"       "package:urca"        
[19] "package:strucchange"  "package:sandwich"     "package:MASS"         "package:utils"        "package:graphics"     "package:grDevices"   
[25] "package:quantmod"     "package:TTR"          "package:xts"          "package:zoo"          "package:stats"        "package:methods"     
[31] "Autoloads"            "package:base"        
> detach("package:dplyr", unload=TRUE)
Warning message:
‘dplyr’ namespace cannot be unloaded:
  namespace ‘dplyr’ is imported by ‘dbplyr’, ‘broom’, ‘tidyr’ so cannot be unloaded 
> detach("package:tidyr", unload=TRUE)
Warning message:
‘tidyr’ namespace cannot be unloaded:
  namespace ‘tidyr’ is imported by ‘broom’ so cannot be unloaded 
> detach("package:broom", unload=TRUE)
Error in detach("package:broom", unload = TRUE) : invalid 'name' argument
> detach("package:tidyr", unload=TRUE)
Error in detach("package:tidyr", unload = TRUE) : invalid 'name' argument
> detach("package:dplyr", unload=TRUE)
Error in detach("package:dplyr", unload = TRUE) : invalid 'name' argument
> last(dmdf[,13],10)
 [1]  7 18  6  7 15 16 20 12 10 23