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I would like to extract the time series from a XML link provided by the ECB. Unfortunately, I am not able to extract the data time series. May someone be able to help me please?

I start to import the data by eurusd=Import["https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange _rates/html/usd.xml", "XML"]

Now I would like to build a time series using the OBS_VALUE out of the XMLElement. Hence I try to extract them by using the command series=eurusd[[All,"OBS_VALUE"]]. Unfortunately this does not work. Can someone please tell me how I can extract the time series out of the XML data link?

Thank you in advance!

Best regards Alex

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After correcting your link (removing one blanc) the answer to your question can be found with 

Cases[eurusd, ("OBS_VALUE" -> a_) :> a, Infinity]
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  • $\begingroup$ Dear @UlrichNeumann thank you very the information! It word very well, great! Is it possible to "restrict" the time period (TIME_PERIOD) also? Let's say for one year from 1999-01-04 to 1999-12-30, or do I need to select the elements afterwards? $\endgroup$
    – Alexander Hempfing
    Jan 26, 2018 at 14:49
  • $\begingroup$ Sorry I don't know how to select inside Cases. If you pick ob = Cases[eurusd, ("OBS_VALUE" -> a_) :> a, Infinity], ti = Cases[eurusd, ("TIME_PERIOD" -> a_) :> DateList[ a], Infinity] you can combine the elements Transpose[{ob,ti}] and filter data concerning date. $\endgroup$
    – Ulrich Neumann
    Jan 26, 2018 at 15:09
  • $\begingroup$ Okay, no worries @UlrichNeumann. Thank you again! $\endgroup$
    – Alexander Hempfing
    Jan 26, 2018 at 15:30

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