我正在准备一份报告给我的同事和学生。我认为最好的方法是通过Google Colab。我的分析是使用R和CRAN上的一些软件包进行的。
I am using a Jupyter Notebook with R kernel. I used the followinf link to create a Notebook with netive R kernel: https://colab.research.google.com/notebook#create=true&language=r. As you can see as follows, its running R.

a <- 1
print(a)

然而，当我尝试安装exactextractr包时，我得到了以下错误：

install.packages("exactextractr")

输出：

Installing package into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)

also installing the dependencies ‘proxy’, ‘e1071’, ‘wk’, ‘sp’, ‘terra’, ‘classInt’, ‘s2’, ‘units’, ‘Rcpp’, ‘raster’, ‘sf’

Warning message in install.packages("exactextractr"):
“installation of package ‘units’ had non-zero exit status”
Warning message in install.packages("exactextractr"):
“installation of package ‘sf’ had non-zero exit status”
Warning message in install.packages("exactextractr"):
“installation of package ‘exactextractr’ had non-zero exit status”

未安装程序包：

library(exactextractr)

输出：

Error in library(exactextractr): there is no package called ‘exactextractr’
Traceback:

1. library(exactextractr)

这是什么问题？