使用 par 函数绘制基于数据组的多个图形

Question

我需要在 R 中绘制 4 个图，x 轴为位置，y 轴为弹珠数。数据中有四组，根据Set和Block是唯一的。

现在，我正在根据Block对每个数据进行子设置并绘制它。之后，我使用 par() 函数将它们全部绘制在一起。

有没有一种简单的方法可以在不手动对数据进行子集化的情况下绘制数据？

  Set Size    Position  Marbles Block
   1   Small  1         8        1
   1   Small  2         81       1
   1   Small  3         3        1
   1   Small  4         4        1
   4   Small  1         8        1
   4   Small  2         81       1
   4   Small  3         3        1
   4   Small  4         4        1
   4   Small  1         14       2
   6   Small  2         11       2
   6   Small  3         12       2
   6   Small  4         25       2
   1   Small  1         8        3
   1   Small  2         81       3
   1   Small  3         3        3
   1   Small  4         4        3
   6   Small  1         14       4
   6   Small  2         11       4
   6   Small  3         12       4
   6   Small  4         25       4

Answer 1

您可以使用 ggplot2::facet_wrap():

library(ggplot2)
ggplot(data = dat, aes(x = Position, y = Marbles)) + 
       geom_point() + facet_wrap(~Block)

数据：

 dat <- structure(list(Set = c(1L, 1L, 1L, 1L, 6L, 6L, 6L, 6L, 1L, 1L,                 
     1L, 1L, 6L, 6L, 6L, 6L), Size = structure(c(1L, 1L, 1L, 1L, 1L,                   
     1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), .Label = "Small", class = "factor"), 
         Position = c(1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L,                      
         4L, 1L, 2L, 3L, 4L), Marbles = c(8L, 81L, 3L, 4L, 14L, 11L,                   
         12L, 25L, 8L, 81L, 3L, 4L, 14L, 11L, 12L, 25L), Block = c(1L,                 
         1L, 1L, 1L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L                    
         )), .Names = c("Set", "Size", "Position", "Marbles", "Block"                  
     ), row.names = c(NA, 16L), class = "data.frame")

Answer 2

实际使用 par 和基础 plot。

op <- par(mfrow=c(2, 2))
by(d, d$Block, function(b) plot(Marbles ~ Position, b, ylim=c(0, max(d$Marbles)), 
                                main=unique(b$Block)))
par(op)

数据

d <- structure(list(Set = c(1L, 1L, 1L, 1L, 4L, 4L, 4L, 4L, 4L, 6L, 
6L, 6L, 1L, 1L, 1L, 1L, 6L, 6L, 6L, 6L), Size = c("Small", "Small", 
"Small", "Small", "Small", "Small", "Small", "Small", "Small", 
"Small", "Small", "Small", "Small", "Small", "Small", "Small", 
"Small", "Small", "Small", "Small"), Position = c(1L, 2L, 3L, 
4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L, 
4L), Marbles = c(8L, 81L, 3L, 4L, 8L, 81L, 3L, 4L, 14L, 11L, 
12L, 25L, 8L, 81L, 3L, 4L, 14L, 11L, 12L, 25L), Block = c(1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 4L, 
4L, 4L, 4L)), class = "data.frame", row.names = c(NA, -20L))

使用 par 函数绘制基于数据组的多个图形

Plotting multiple graphs based on data groups using par function

r

plot

subset

par