xuzhougeng blog

我们分别在R和python中构建一个数据框，用1到9进行填充，有3列，对应a,b,c R代码如下 mat = matrix(1:9, nrow = 3, ncol = 3,byrow = TRUE) df = as.data.frame(mat) colnames(df) <- c("a","b","c") Python代码如下 import numpy as np import pandas as pd mat = np.array(range(1,10)) mat = mat.reshape(3