原创 ggplot2 熱圖繪製
1. 包導入 library(ggplot2) library(reshape2) 2. 數據導入 mtcars The data was extracted from the 1974 Motor Trend US magazine,
1. 包導入 library(ggplot2) library(reshape2) 2. 數據導入 mtcars The data was extracted from the 1974 Motor Trend US magazine,