我是 R 新手,想知道如何在散点图上标记数据点。我尝试了以下代码,但出现错误。
x = c(102856,17906,89697,74384,91081,52457,73749,29910,75604,28267,122136,
54210,48925,58937,76281,67789,69138,18026,90806,44893)
y = c(2818, 234, 2728, 2393, 2893, 1015, 1403, 791, 2243, 596, 2468, 1495,
1232, 1746, 2410, 1791, 1706, 259, 1982, 836)
plot(x, y, main="Scatterplot ", xlab="xaxis ", ylab="yaxis ", pch=19)
names = c("A","C","E","D","G","F","I","H","K","M","L","N","Q","P","S","R",
"T","W","V","Y")
library(calibrate)
textxy(x, y, labs=names, cx = 0.5, dcol = "black", m = c(0, 0))
Error in text.default(X[posXposY], Y[posXposY], labs[posXposY], adj = c(-0.3, :
plot.new has not been called yet
我不明白这个错误。请帮我
最佳答案
您可以在 ggplot2
中完成:
require(ggplot2)
d <- data.frame(x = c(102856,17906,89697,74384,91081,52457,73749,29910,75604,28267,122136, 54210,48925,58937,76281,67789,69138,18026,90806,44893), y = c(2818, 234, 2728, 2393, 2893, 1015, 1403, 791, 2243, 596, 2468, 1495, 1232, 1746, 2410, 1791, 1706, 259, 1982, 836), names = c("A","C","E","D","G","F","I","H","K","M","L","N","Q","P","S","R","T","W","V","Y"))
ggplot(d, aes(x,y)) + geom_point() + geom_text(aes(label=names))
您可能不希望文本标签直接位于点的顶部,这可以通过使用
hjust
来实现。或 vjust
geom_text
中的参数部分。
关于r - 如何用R标记散点图上的点?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9500066/