我试图s用列A1和计算数据集的中值向量B1.中值向量是来自两个列的每个观察的中值.
我试图这样做但它不起作用.
median(s[c("A1","B1")])
还有另一种方法吗？
在R中是否有办法建立一个由给定的一组向量组成的新数据集 - median1,median2,median3,median4--它们是来自先前数据集的中值向量？
median1 = apply(s[,c("A1","B1","C1","D1","E1","F1","G1","H1","I1")],1,median)
median2 = apply(s[,c("A2","B2","C2","D2","E2","F2","G2","H2","I2")],1,median)
median3 = apply(s[,c("A3","B3","C3","D3","E3","F3","G3","H3","I3")],1,median)
median4 = apply(s[,c("A4","B4","C4","D4","E4","F4","G4","H4","I4")],1,median)
plot(median1,median2, pch = ".")
我正在尝试在页面散点图的顶部添加一个标题,但是每当我使用命令标题时,它都不会在页面顶部添加标题并覆盖我的绘图.有没有办法来解决这个问题 ？
plot(median, pch = ".")
title(main = "Scatterplot of the median vectors ",line = 0,font=2)