[R] RCurl::postForm() -- how does one determine what the names are of each form element in an online html form?
tony.breyal at googlemail.com
Tue Dec 9 18:58:13 CET 2008
I am looking into using the Open Calais web service (http://
sws.clearforest.com/calaisViewer/) for text mining purposes. I would
like to use R to post text into one of the forms on their website.
In package RCurl, there is a function called postForm(). This sounds
like it would do the job. Unfortunately the URL used in the example is
no longer valid (i have emailed the maintainer about this).
Question: How does one determine the name of the form elements to use?
is there an R function which will print out the names of these
[i am still learning, so please forgive me if i used the wrong
### Example from ?postForm ###
# Now looking at POST method for forms.
"some_text" = "Duncan",
"choice" = "Ho",
"radbut" = "eep",
"box" = "box1, box2"
### Example ends ###
So in the above code, i believe the form elements are: "some_text",
"choice", "redbut" and "box". But how does one find out the names of
these form elements if one is not given them previously?
I hope that the above made sense, and thank you kindly in advance for
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