On 04.05.19 19:04, Stephen Berman wrote:
> In versions of R prior to 3.6.0 the following invocation succeeds,
> returning the data frame shown:
>
>> read.table("https://www.dwds.de/r/stat?corpus=kern&cnt=tokens&date=decade&format=text";,
>> header=TRUE)
> Dekade Anzahl
> 1 1900 11467254
> 2 1910 13023370
> 3 1920 13434601
> 4 1930 13296355
> 5 1940 12121250
> 6 1950 13191131
> 7 1960 10587420
> 8 1970 10944129
> 9 1980 11279439
> 10 1990 12052652
>
> But in version 3.6.0 it fails:
>
>> read.table("https://www.dwds.de/r/stat?corpus=kern&cnt=tokens&date=decade&format=text";,
>> header=TRUE)
> Error in file(file, "rt") :
> cannot open the connection to
> 'https://www.dwds.de/r/stat?corpus=kern&cnt=tokens&date=decade&format=text'
> In addition: Warning message:
> In file(file, "rt") :
> cannot open URL
> 'https://www.dwds.de/r/stat?corpus=kern&cnt=tokens&date=decade&format=text':
> HTTP status was '403 Forbidden'
I can reproduce the behavior on Debian using the CRAN supplied package
for R 3.6.0. Trying to read the page with 'curl' produces also a 403
error plus some HTML text (in German) explaining that I am treated as a
'robot' due to the supplied User-Agent (here: curl/7.52.1). One
suggested solution is to adjust that value which does solve the issue:
> options(HTTPUserAgent='mozilla')
>
read.table("https://www.dwds.de/r/stat?corpus=kern&cnt=tokens&date=decade&format=text";,
header=TRUE)
Dekade Anzahl
1 1900 11467254
2 1910 13023370
3 1920 13434601
4 1930 13296355
5 1940 12121250
6 1950 13191131
7 1960 10587420
8 1970 10944129
9 1980 11279439
10 1990 12052652
Other solutions are to simulate a login or to get in touch with DWDS
directly.
Greetings
Ralf
--
Ralf Stubner
Senior Software Engineer / Trainer
daqana GmbH
Dortustraße 48
14467 Potsdam
T: +49 331 23 61 93 11
F: +49 331 23 61 93 90
M: +49 162 20 91 196
Mail: [email protected]
Sitz: Potsdam
Register: AG Potsdam HRB 27966
Ust.-IdNr.: DE300072622
Geschäftsführer: Dr.-Ing. Stefan Knirsch, Prof. Dr. Dr. Karl-Kuno Kunze
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