ggplot2中的默认线型？

Question

我很努力地想出ggplot2中使用的默认线型。我有一个数据帧如下：

test <- structure(list(time = c(151.04167175293, 151.125015258789, 151.20832824707, 
151.29167175293, 151.375030517578, 151.45832824707, 151.54167175293, 
151.625015258789, 151.70832824707, 151.79167175293, 151.875030517578, 
151.95832824707, 151.08332824707, 151.166687011719, 151.250030517578, 
151.333343505859, 151.41667175293, 151.5, 151.58332824707, 151.666687011719, 
151.750030517578, 151.833343505859, 151.91667175293, 151.04167175293, 
151.125015258789, 151.20832824707, 151.29167175293, 151.375030517578, 
151.45832824707, 151.54167175293, 151.625015258789, 151.70832824707, 
151.79167175293, 151.875030517578, 151.95832824707, 151.08332824707, 
151.166687011719, 151.250030517578, 151.333343505859, 151.41667175293, 
151.5, 151.58332824707, 151.666687011719, 151.750030517578, 151.833343505859, 
151.91667175293, 151.04167175293, 151.125015258789, 151.20832824707, 
151.29167175293, 151.375030517578, 151.45832824707, 151.54167175293, 
151.625015258789, 151.70832824707, 151.79167175293, 151.875030517578, 
151.95832824707, 151.08332824707, 151.166687011719, 151.250030517578, 
151.333343505859, 151.41667175293, 151.5, 151.58332824707, 151.666687011719, 
151.750030517578, 151.833343505859, 151.91667175293, 151.04167175293, 
151.125015258789, 151.20832824707, 151.29167175293, 151.375030517578, 
151.45832824707, 151.54167175293, 151.625015258789, 151.70832824707, 
151.79167175293, 151.875030517578, 151.95832824707, 151.08332824707, 
151.166687011719, 151.250030517578, 151.333343505859, 151.41667175293, 
151.5, 151.58332824707, 151.666687011719, 151.750030517578, 151.833343505859, 
151.91667175293), value = c(0, 0, 5.61033323376278e-29, 1.54657131948427e-17, 
9.66035151178657e-12, 5.10066877623672e-09, 5.13016118475207e-08, 
5.63439357392781e-08, 2.30620536001425e-08, 9.08235708863003e-09, 
8.37633162831253e-09, 1.55146210545354e-07, 0, 0, 2.25358956126054e-21, 
2.08607626615495e-13, 1.98955163455139e-09, 9.66092130738616e-08, 
1.91719223607834e-07, 1.09957049687637e-07, 3.104455004177e-08, 
1.31108741641128e-08, 6.10190298289126e-08, 0, 0, 0, 0, 3.2789574202628e-30, 
6.73093043024932e-24, 7.93898871359986e-21, 1.51219769988266e-19, 
3.67432930162413e-19, 7.19692007469365e-19, 3.20756611951269e-18, 
4.69377782154479e-17, 0, 0, 0, 5.28026380068047e-35, 6.81666051928849e-28, 
2.74272295486945e-23, 3.82383180911782e-21, 1.74006456826736e-20, 
4.48768165153377e-20, 1.60533888309098e-19, 1.53676095741939e-18, 
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
0, 0, 0, 0, 0, 0, 8.71725244784488e-30, 1.04201812373392e-23, 
2.36111112593732e-21, 5.04498618818828e-20, 1.39487078953905e-19, 
9.53610723085965e-19, 2.04732743716978e-17, 2.28480170675856e-15, 
0, 0, 0, 1.1415638533226e-32, 3.46081290989027e-27, 5.11190859597535e-23, 
2.60199456175554e-21, 8.88056339654886e-21, 2.0802860544737e-20, 
3.12119181655233e-19, 3.69406751642014e-17), id = structure(c(1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L), .Label = c("a", 
"b", "c", "d", "e", "f"), class = c("ordered", "factor")), dis = structure(c(1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 
4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L), .Label = c("50", 
"100", "250", "50(nothing)"), class = c("ordered", "factor"))), .Names = c("time", 
"value", "id", "dis"), row.names = c("1", "3", "5", "7", "9", 
"11", "13", "15", "17", "19", "21", "23", "722", "724", "726", 
"728", "730", "732", "734", "736", "738", "740", "742", "4321", 
"4323", "4325", "4327", "4329", "4331", "4333", "4335", "4337", 
"4339", "4341", "4343", "5042", "5044", "5046", "5048", "5050", 
"5052", "5054", "5056", "5058", "5060", "5062", "8641", "8643", 
"8645", "8647", "8649", "8651", "8653", "8655", "8657", "8659", 
"8661", "8663", "9362", "9364", "9366", "9368", "9370", "9372", 
"9374", "9376", "9378", "9380", "9382", "12", "32", "52", "72", 
"92", "112", "132", "152", "172", "192", "212", "232", "7221", 
"7241", "7261", "7281", "7301", "7321", "7341", "7361", "7381", 
"7401", "7421"), class = "data.frame") 

现在，我绘制上述数据框如下：

library(ggplot2) 
ggplot(test)+ 
    geom_line(aes(time,value,linetype=dis))+ 
    facet_wrap(~id,ncol=2)+theme_bw()+ 
    ylab("concentration ")+coord_cartesian(xlim=c(151,181),ylim=c(-0.15,0.75))+ labs(linetype="")+ 
    theme(panel.margin = unit(1, "lines"))+ xlab("")+ 
    scale_x_continuous(limits=c(151,181),breaks=seq(151,181,5))+ 
    scale_y_continuous(limits=c(-0.15,1.75),breaks=seq(-0.15,1.75,0.15))+ 
    theme(legend.position="top",legend.key =element_blank()) 

输出如下：

我试图要知道默认使用哪些线型？因为当我尝试使用scale_linetype_manual("", values=c(1,2,3,4))时，它不会像上面那样生成相同的linetypes。

通过指定上述线型获得的图形是

会有人澄清这个问题？通过指定线型可以达到相同的效果吗？我尝试这样做的原因是在使用默认设置之前，现在我需要更改一种线型。

我尝试了几个linetypes，但无法弄清楚什么linetypes用于我们不手动指定线型时。谢谢

我没有dis =“100”和“250”的数据在这里，但应该能够有相同的线型。

编辑

链接到全部数据集如下： https://dl.dropboxusercontent.com/u/9267938/dputtest.rda

Answer 1

以下是找出默认linetypes的一种方法，它们的使用顺序为ggplot及其名称。

# some data 
df <- data.frame(x = 1:2, y = rep(20:1, each = 2), grp = factor(rep(1:20, each = 2))) 
df 

# plot 
p <- ggplot(data = df, aes(x = x, y = y, linetype = grp)) + 
    geom_line() + 
    geom_text(aes(x = 0.95, label = grp)) + 
    theme_classic() + 
    theme(axis.title = element_blank(), 
     axis.text = element_blank(), 
     axis.ticks = element_blank(), 
     axis.line = element_blank(), 
     legend.position = "none") 
p 

显然，也有ggplot 13个默认线型。如果您查看绘图对象中的数据，则会找到不同linetype的相应“名称”。

g <- ggplot_build(p) 
g$data[[1]] 

    linetype x y PANEL group 
1  solid 1 1  1  1 
2  solid 2 1  1  1 
3  22 1 2  1  2 
4  22 2 2  1  2 
5  42 1 3  1  3 
6  42 2 3  1  3 
7  44 1 4  1  4 
8  44 2 4  1  4 
9  13 1 5  1  5 
10  13 2 5  1  5 
11  1343 1 6  1  6 
12  1343 2 6  1  6 
13  73 1 7  1  7 
14  73 2 7  1  7 
15  2262 1 8  1  8 
16  2262 2 8  1  8 
17 12223242 1 9  1  9 
18 12223242 2 9  1  9 
19  F282 1 10  1 10 
20  F282 2 10  1 10 
21 F4448444 1 11  1 11 
22 F4448444 2 11  1 11 
23 224282F2 1 12  1 12 
24 224282F2 2 12  1 12 
25  F1 1 13  1 13 
26  F1 2 13  1 13 
27 blank 1 14  1 14 
28 blank 2 14  1 14 
...more blanks 
39 blank 1 20  1 20 
40 blank 2 20  1 20 

参见?aes_linetype_size_shape对如何解释“数值名称”和如何linetype可使用“一个整数，名称，或具有偶数个的字符串中的字符（最多八个）”来指定。在?par：lty和“Line Type Specification”中也可以找到类似的描述; “五种标准点划线类型（lty = 2:6）对应于c("44", "13", "1343", "73", "2262")。

Answer 2

看一看this overview，你可以看到哪些编号对应与线型。因此，如果您想手动指定您可能必须使用的默认值：scale_linetype_manual(values=c(1,3,2,5))

Answer 3

如this answer解释，让scale_linetype_manual(...)做你想要什么，你必须设置values=...到一个名为向量，如下：

test <- read.table("https://dl.dropboxusercontent.com/u/9267938/dputtest.rda") 

lt.names <- c("50(nothing)","50","100","250") # this sets the order 
lt <- setNames(c(1,2,3,4),lt.names) 
library(ggplot2) 
ggplot(test)+ 
    geom_line(aes(time,value,linetype=dis))+ 
    facet_wrap(~id,ncol=2)+theme_bw()+ 
    ylab("concentration ")+coord_cartesian(xlim=c(151,181),ylim=c(-0.15,0.75))+ labs(linetype="")+ 
    theme(panel.margin = unit(1, "lines"))+ xlab("")+ 
    scale_x_continuous(limits=c(151,181),breaks=seq(151,181,5))+ 
    scale_y_continuous(limits=c(-0.15,1.75),breaks=seq(-0.15,1.75,0.15))+ 
    theme(legend.position="top",legend.key =element_blank())+ 
    scale_linetype_manual(values=lt, breaks=lt.names) 

与此相比，结果当你设置如下lt：

lt <- setNames(c(4,3,2,1),lt.names)