我使用格子和格子额外绘制五个不同区域的观察值和预测值 . 我使用xyplot绘制观察值,然后使用格子额外的as.layer函数来添加预测线 . 我想在图表中添加一个图例,但没有任何运气 .
以下是两个示例数据集以及用于绘图的代码 .
示例数据集一 . 我只包括两个方面 .
example1 <-
structure(list(model_predict = c(10, 25, 95, 23, 56, 70, 56,
45, 25, 50), Shell_Height = c(27, 33, 115, 25, 46, 50, 35, 35,
23, 45), SAMS_region_2015 = structure(c(1L, 1L, 1L, 1L, 1L, 2L,
2L, 2L, 2L, 2L), .Label = c("DMV", "LI"), class = "factor")), .Names = c("model_predict",
"Shell_Height", "SAMS_region_2015"), row.names = c(NA, -10L), class = "data.frame")
示例数据集二 . 也只包括两个方面 .
example2 <-
structure(list(Meat_Weight = c(15, 27, 100, 15, 60, 75, 50, 37,
28, 60), Shell_Height = c(25, 30, 110, 20, 45, 48, 35, 30, 25,
50), SAMS_region_2015 = structure(c(1L, 1L, 1L, 1L, 1L, 2L, 2L,
2L, 2L, 2L), .Label = c("DMV", "LI"), class = "factor")), .Names = c("Meat_Weight",
"Shell_Height", "SAMS_region_2015"), row.names = c(NA, -10L), class = "data.frame")
图形代码
library(lattice)
library(latticeExtra)
#observed vs predicted values by SAMS region
foo<-xyplot(Meat_Weight~Shell_Height|SAMS_region_2015,data=example2,
ylab="Meat Weight (g)",xlab="Shell Height (mm)",type="p",
col="red",pch=3)
#add layer of observed values
foo <- foo +
as.layer(xyplot(model_predict~Shell_Height|SAMS_region_2015,
type = "l", data = example1, col = "blue", lwd = 4, lty = 3))
我想为具有文本Observed和Predicted的图表添加图例,以及图表中用于不同变量的符号或线条和颜色 .
R Info sessionInfo()R版本3.2.1(2015-06-18)平台:i386-w64-mingw32 / i386(32位)运行于:Windows 7 x64(build 7601)Service Pack 1
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] grid stats graphics grDevices utils datasets
[7] methods base
other attached packages:
[1] latticeExtra_0.6-26 RColorBrewer_1.1-2 nlme_3.1-120
[4] MASS_7.3-40 xlsx_0.5.7 xlsxjars_0.6.1
[7] rJava_0.9-6 plyr_1.8.3 RODBC_1.3-12
[10] lattice_0.20-31
loaded via a namespace (and not attached):
[1] tools_3.2.1 Rcpp_0.11.6
任何帮助,将不胜感激 .
2 回答
您只需将
key=
添加到两个xyplot
调用之一即可xyplot()
's key argument takes a list of parameters that'很好地处理这个问题 . 唯一真正的诀窍是,如果在列表中包含lines
元素,则可以在其中包含一个额外的type=
元素,指示哪些项目将被绘制为点,哪些项目将被绘制为线条 .