在gplots中添加傳說R包

Question

我正在使用此代碼來繪製我的圖表，但我不知道如何添加傳說？

library(gplots) 
data1 <- as.matrix(read.table('$INPUT_FILE1', header = T)) 
data2 <- as.matrix(read.table('$INPUT_FILE2', header = T)) 
data1.experiment <- as.factor(data1[,\"$FACTORS\"]) 
data1.obs <- as.numeric(data1[,\"$RESPONSE_VAR\"]) 
data2.obs <- as.numeric(data2[,\"$RESPONSE_VAR\"]) 
pdf(file = 'MeanPlot.pdf', width=5, height=5) 
plotmeans(data2.obs ~ data1.experiment, xlab='$FACTORS', ylab='$RESPONSE_VAR') 
plotmeans(data1.obs ~ data1.experiment, xlab='$FACTORS', ylab='$RESPONSE_VAR') 

Answer 1

您是否嘗試過在R中添加圖例的常規方法？

legend("bottom", c("px", "y"), col=c("blue", "red"), lty = c(1), cex = 0.7)