我使用stat_summary来显示平均值,根据我的计算,“type1,G-”应该有〜10^7.3的平均值。这就是我没有使用log10轴绘制它的价值。但是当我添加log10轴时,突然“type1,G-”显示10^6.5的值。ggplot2:为什么设置为log10轴时显示错误的值?
发生了什么事?
#Data
Type = rep(c("type1", "type2"), each = 6)
Gen = rep(rep(c("G-", "G+"), each = 3), 2)
A = c(4.98E+05, 5.09E+05, 1.03E+05, 3.08E+05, 5.07E+03, 4.22E+04, 6.52E+05, 2.51E+04, 8.66E+05, 8.10E+04, 6.50E+06, 1.64E+06)
B = c(6.76E+07, 3.25E+07, 1.11E+07, 2.34E+06, 4.10E+04, 1.20E+06, 7.50E+07, 1.65E+05, 9.52E+06, 5.92E+06, 3.11E+08, 1.93E+08)
df = melt(data.frame(Type, Gen, A, B))
#Correct, non-log10 version ("type1 G-" has a value over 1e+07)
ggplot(data = df, aes(x =Type,y = value)) +
stat_summary(fun.y="mean",geom="bar",position="dodge",aes(fill=Gen))+
scale_x_discrete(limits=c("type1"))+
coord_cartesian(ylim=c(10^7,10^7.5))
#Incorrect, log10 version ("type1 G-" has a value under 1e+07)
ggplot(data = df, aes(x =Type,y = value)) +
stat_summary(fun.y="mean",geom="bar",position="dodge",aes(fill=Gen))+
scale_y_log10()
它采取日志转换后的意思?我想这里的正确和不正确是主观的。 – Axeman