[英]Scatter plot Text labels in R
stripchart(Age~Smoke, data = survey_clean_data , pch=16 , col = "blue", method = "jitter" ,main = "AGE VS SMOKE",na.rm = T)
I want to add labels to it like below image, 我想为其添加标签,如下图所示,
I tried several options.. but it is getting written on top of of other. 我尝试了几种选择..但是它被写在其他之上。
means = c(paste("mean_Age =",roumean(survey_clean_data[Smoke == "Heavy","Age"],na.rm =T)),
paste("mean_Age =",mean(survey_clean_data[Smoke == "Never","Age"],na.rm =T)),
paste("mean_Age =",mean(survey_clean_data[Smoke == "Regul","Age"],na.rm =T)),
paste("mean_Age =",mean(survey_clean_data[Smoke == "Occas","Age"],na.rm =T)))
text(50,survey_clean_data$Smoke,labels = means)
DATA: library(MASS) attach(survey) 数据:库(MASS)附加(调查)
There are a few problems with your code. 您的代码有一些问题。 The main thing is that you are sending
text()
four labels (the contents of means
), but a number of y-coordinates equal to the number of data points, since you are sending it survey_clean_data
. 最主要的是,你要发送
text()
四个标签(内容means
),但一些y坐标等于数据点的数量,因为你是在发送survey_clean_data
。 R tries to equalize these uneven vectors, resulting in the over plotting. R试图均衡这些不均匀向量,从而导致绘制过度。
Instead, you might do (data are artificial since you didn't provide any): 相反,您可以这样做(数据是人为的,因为您没有提供任何数据):
stripchart(Age~Smoke, data = survey_clean_data , pch=16 , col = "blue", method = "jitter" ,main = "AGE VS SMOKE",na.rm = T)
means <- aggregate(Age~Smoke, data = survey_clean_data, FUN = mean) # mean of each category
means$y <- 1:4 # add y-coordinates for each category
with(means, text(50, Smoke, labels = sprintf('Mean Age = %0.1f', Age))) # plot text labels on top of stripchart
Result: 结果:
answer give by jdobres worked fine. jdobres给出的答案效果很好。 The below is one more solution.
以下是另一种解决方案。
add ylim=c(0.8,4.2)
parameter to the scatterplot. 在散点图中添加
ylim=c(0.8,4.2)
参数。 You can adjust these ranges from c(1,4) to c(0.8,4.2). 您可以将范围从c(1,4)调整为c(0.8,4.2)。 The later one worked for me.
后来的一个为我工作。
stripchart(Age~Smoke, data = survey_clean_data , pch=16 , col = 634, method = "jitter" ,main = "AGE VS SMOKE",na.rm = T,ylim=c(0.8,4.2))
With the below line you can adjust the vertical height of the text. 在下面的行中,您可以调整文本的垂直高度。 eg: +0.1, -0.1 etc
例如:+ 0.1,-0.1等
text(50,c(1:4)+0.1,means)
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