[R] Webscraping Data RCurl
Sven D
sduve at hotmail.com
Sun May 27 15:26:32 CEST 2012
Hello,
I am trying to gather data from the following page:
http://toast.gasunie.de/Pages/search.aspx?lang=en&soid=GUD
I am trying to get hourly data. I did the following:
url = "http://toast.gasunie.de/Pages/search.aspx?lang=en&soid=GUD"
getFormParams(url)
fair enough, this did not return any sensible name=value parameters I could
use. I then looked into the HTML code to find name=value parameters that
would help me. I found the following name=value pairs, and set:
today = format(Sys.time(), "%d.%m.%Y")
ctl00_MainContent_webDatePickerFrom_DrpPnl1_DP_CAL_ID_1=today,
ctl00_MainContent_webDatePickerTo_DrpPnl2_DP_CAL_ID_2=today
GasQuality="H",
PointType="EN",
PointList="H070",
Publishers="HourValues",
ListHourValues="HTLF",
Submit="Weiter"
So I went on and tried getForm() and postForm() with the above parameters,
but it did not show any success. So I THINK the problem is that the
webapplication is returning the table on a different URL as the one above,
please have a quick try with the webapplication. How can I come by this
problem?
Best, and thanks
Sven
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