尝试使用 R 从 cdc 下载此压缩文件。它在 firefox 上运行良好。所以我setInternet2(TRUE)
立即尝试,但仍然没有用。
在以下每种情况下,我得到:
z<-解压缩(tf)
Warning message:
In unzip(tf) : zip file is corrupt
这是我所有尝试的开始两行 -
fn <- 'ftp://ftp.cdc.gov/pub/health_statistics/nchs/datasets/dvs/natality/nat2012us.zip'
tf <- tempfile() ; td <- tempdir()
这就是我尝试过的:
# fails
download.file(fn,tf,mode='wb')
z <- unzip( tf , exdir = td )
# fails
setInternet2(TRUE)
download.file(fn,tf,mode='wb')
z <- unzip( tf , exdir = td )
# fails
download.file(fn,tf,mode='wb',cacheOK=FALSE)
z <- unzip( tf , exdir = td )
# fails
setInternet2(TRUE)
download.file(fn,tf,mode='wb',cacheOK=FALSE)
z <- unzip( tf , exdir = td )
# fails
library(downloader)
download(fn,tf,mode='wb')
z <- unzip( tf , exdir = td )
# fails
library(httr)
resp <- GET(fn)
writeBin(content(resp, "raw"), tf)
# fails
library(RCurl)
x <- getBinaryURL( fn )
writeBin( x , tf )
z <- unzip(tf)
# in every case:
> file.info(tf)$size
[1] 228799759
抱歉,如果这是愚蠢的事情