本文介绍了使用 download.file() 从 HTTPS 下载文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想使用 download.file()
将在线数据读取到 R,如下所示.
I would like to read online data to R using download.file()
as shown below.
URL <- "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv"
download.file(URL, destfile = "./data/data.csv", method="curl")
有人建议我添加行 setInternet2(TRUE)
,但它仍然不起作用.
Someone suggested to me that I add the line setInternet2(TRUE)
, but it still doesn't work.
我得到的错误是:
Warning messages:
1: running command 'curl "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv" -o "./data/data.csv"' had status 127
2: In download.file(URL, destfile = "./data/data.csv", method = "curl", :
download had nonzero exit status
感谢您的帮助.
推荐答案
尝试 RCurl 包可能是最简单的方法.安装软件包并尝试以下操作:
It might be easiest to try the RCurl package. Install the package and try the following:
# install.packages("RCurl")
library(RCurl)
URL <- "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv"
x <- getURL(URL)
## Or
## x <- getURL(URL, ssl.verifypeer = FALSE)
out <- read.csv(textConnection(x))
head(out[1:6])
# RT SERIALNO DIVISION PUMA REGION ST
# 1 H 186 8 700 4 16
# 2 H 306 8 700 4 16
# 3 H 395 8 100 4 16
# 4 H 506 8 700 4 16
# 5 H 835 8 800 4 16
# 6 H 989 8 700 4 16
dim(out)
# [1] 6496 188
download.file("https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv",destfile="reviews.csv",method="libcurl")
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