在 R 中创建一个包含 3 个变量的数据透视表

Create a pivot with 3 variables in R

我在一个数据框中有三个变量:

Country <- ("ARG","BR","US","ARG","ARG","BR","CH")
Education_level <- ("HIGH","COLLEGE","KINDER","KINDER","COLLEGE")
Indicator <- (1,1,1,0,1,0,1,0,0,0,1,1,0,1,0,1,1)

我需要通过计算或汇总按国家和 Education_level 分组的“指标”的值来创建一个数据透视表或一些组。我该怎么做?

我们可以使用 xtabs 来自 base R

xtabs(Indicator ~ Country + Education_level)