Web-Scraping: the Basics

Slides from the first session of my course about web scraping through R: Web scraping for the humanities and social sciences

Includes an introduction to the paste function, working with URLs, functions and loops.
Putting it all together we fetch data in JSON format about Wikipedia page views from http://stats.grok.se/

Solutions here:

Download the .Rpres file to use in Rstudio here

Slides from part two can be seen here

Slides from part three here

Slides from the fourth and final session here

UPDATE March 2015:
New 2015 version of slides here
PDFs of slides available here


Slides from part two can be seen here
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22 comments:

  1. scagcurFebruary 20, 2014 at 8:20 AM

    Here is a shiny app that covers one of your examples
    http://glimmer.rstudio.com/pssguy/wikiSearchRates/

    ReplyDelete
    Replies
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    2. ibupuspitawatiMarch 24, 2020 at 4:27 PM

      KARNA RASA HATI YANG GEMBIRA BERKAT BANTUAN AKI SOLEH
      MAKANYA SENGAJA NAMA BELIAU SAYA CANTUNKAN DI INTERNET !!!

      assalamualaikum wr, wb, saya IBU PUSPITA WATI saya Mengucapkan banyak2
      Terima kasih kepada: AKI SOLEH
      atas nomor togelnya yang kemarin AKI berikan "4D"
      alhamdulillah ternyata itu benar2 tembus AKI
      dan berkat bantuan AKI SOLEH saya bisa melunasi semua hutan2…
      orang tua saya yang ada di BANK BRI dan bukan hanya itu AKI alhamdulillah,
      sekarang saya sudah bisa bermodal sedikit untuk mencukupi kebutuhan keluarga saya sehari2.
      Itu semua berkat bantuan AKI SOLEH sekali lagi makasih banyak ya, AKI
      yang ingin merubah nasib
      seperti saya...?
      SILAHKAN GABUNG SAMA AKI SOLEH No; { 082-313-336-747 }

      Sebelum Gabung Sama AKI Baca Duluh Kata2 Yang Dibawah Ini
      Apakah anda termasuk dalam kategori di bawah ini...!!
      1: Di kejar2 tagihan hutang..
      2: Selaluh kalah dalam bermain togel
      3: Barang berharga sudah
      terjual buat judi togel..
      4: Sudah kemana2 tapi tidak
      menghasilkan, solusi yang tepat..!
      5: Sudah banyak dukun ditempati minta angka ritual blom dapat juga,
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      Dijamin anda akan berhasil
      silahkan buktikan sendiri
      Atau Chat/Tlpn di WhatsApp (WA)
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      TERIMA KASIH YANG PUNYA
      ROOM ATAS TUMPANGANYA SALAM KOMPAK SELALU
      "KLIK DISINI BOCORAN TOGEL SGP HK SDY DAN DLL"

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  2. AnonymousFebruary 21, 2014 at 12:44 AM

    Very nice, thanks. Hope to see the material from the other classes as well.

    ReplyDelete
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  4. UnknownNovember 26, 2014 at 8:18 PM

    Thank you for sharing this awesome material!!!

    I am a very newbie in web scrapping, but I want to analize my spotify data, can you adress me to anywhere to achieve this goal?? I dont find any use of these APIs in R.

    ReplyDelete
  5. deevybeeMarch 14, 2015 at 12:29 AM

    Many thanks for this. Just in case others hit the same issues:
    When I pasted in your code from slides, it did not work because the quotes pasted as curly quotes. All fine when turned into straight quotes.

    I am using R2.15.3.
    rjson is not compatible with this, but RJSONIO works fine

    ReplyDelete
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