Displaying 20 results from an estimated 300 matches similar to: "Problem with readHTMLTable"
2013 Jan 15
1
readHTMLTable (XML package)
Hi,
I am using XML::readHTMLTable and getting the below error. Does anyone know why? Does this function not work with https? I didn't see anything in help about that.
> library(XML)
> wampage<-readHTMLTable('https://hr-workforce-analytics.llnl.gov/wf_pi_pop.html',1)
Error in htmlParse(doc) :
File https://hr-workforce-analytics.llnl.gov/wf_pi_pop.html does not exist
Dan
2009 Nov 26
1
How to suppress errors generated by readHTMLTable?
library(XML)
download.file('http://polya.umdnj.edu/polya_db2/gene.php?llid=109079&unigene=&submit=Submit','index.html')
tables=readHTMLTable("index.html",error=function(...){})
tables
readHTMLTable gives me the following errors. Could somebody let me
know how to suppress them?
Opening and ending tag mismatch: center and table
htmlParseEntityRef: expecting
2012 Jun 14
1
readHTMLTable function - unable to find an inherited method ~ for signature "NULL"
Hi R experts,
I have been playing with library(XML) recently and found out that
readHTMLTable workls flawlessly for some website, but it does give me an
error like below
... Error in function (classes, fdef, mtable) :
unable to find an inherited method for function "readHTMLTable", for
signature "NULL"
let's say..for example, this code works fine
a
2010 Mar 18
1
Do colClasses in readHTMLTable (XML Package) work?
Hi,
I can't get the colClasses option to work in the readHTMLTable function
of the XML package. Here's a code fragment:
require("XML")
doc <- "http://www.nber.org/cycles/cyclesmain.html"
table <- getNodeSet(htmlParse(doc),"//table") [[2]] # The
main table is the second one because it's embedded in the page table.
xt
2012 Mar 04
1
quantmod getOptionChain Not Work
Dear R Helpers,
I am still having trouble with the getOptionChain command in quantmod. I
have the latest version of quantmod, etc. so I was under the impression
that the problem was solved with updates to the package.
If someone could let me know what I need to install in order to make this
work, I would really appreciate it.
My error message as session info are shown below. Thanks a bunch.
2017 Jul 10
2
Problems with time formats when importing data using readHTMLTable
Hi,
I am extracting positions data from the marine traffic website. The
table has a "Timestamp" column which, in the browser, appears with the
format yyyy-mm-dd HH:MM (UTC), e.g. 2017-07-10 14:04 (UTC).
When I import the table, the same date "2017-07-10 14:04 (UTC)" appears
as "1499696500149969650021 minutes ago", This is the more recent date
and time. Older
2017 Jul 10
0
Problems with time formats when importing data using readHTMLTable
Not reproducible. [1][2][3] If our answers don't seem to apply to your situation, it will likely be because you did not explain your question clearly.
Not plain text. This is a plain text mailing list, and the best-case scenario when you let your email program send HTML is that what you saw is not what we see (worst case is your email is scrambled on our end).
Have you read the
2012 Sep 17
1
memory leak using XML readHTMLTable
Hi,
I'm using the XML package to scrape data and I'm trying to figure out
how to eliminate the memory leak I'm currently experiencing. In the
searches I've done, it sounds like the existence of the leak is fairly
well known. What isn't as clear is exactly how to solve it. The
general process I'm using is this:
require(XML)
myFunction <- function(URL) {
html
2011 May 05
1
issue with "strange" characters (readHTMLTable)
Thank you. The line of code you give certainly resolves several of the
issues.
I didn't realize that font support is such a tough matter to realize. Let me
express my gratitude to those who provide this for us in R.
On 04-05-11, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
Oh, please!
This is about the contributed package XML, not R and not Windows.
Some of
2017 Jul 11
2
Problems with time formats when importing data using readHTMLTable
Dear Jeff,
I am sorry, I didn't notice that it was not plain text. I hope that it
is now in the correct format. I explain the problem again, now with more
detais.
I am collecting the track positions of our research vessel from
www.marinetraffic.com. In the page, the data appear in a table:
Timestamp Source Speed (kn) Latitude (?) Longitude (?)
Course (?) Show on Map
2012 Aug 09
2
read htm table error
Hi I am using Version R 2.15 and I haven't been able read html table. Following is my code and error message.
Error in htmlParse(doc) :
error in creating parser for http://en.wikipedia.org/wiki/Brazil_national_football_team
theurl <- "http://en.wikipedia.org/wiki/Brazil_national_football_team"
tables <- readHTMLTable(theurl)
Regards,
Kiung
[[alternative HTML version
2017 Jul 11
0
Problems with time formats when importing data using readHTMLTable
> On Jul 11, 2017, at 6:25 AM, Cristina Silva <csilva at ipma.pt> wrote:
>
> Dear Jeff,
>
> I am sorry, I didn't notice that it was not plain text. I hope that it is now in the correct format. I explain the problem again, now with more detais.
> I am collecting the track positions of our research vessel from www.marinetraffic.com. In the page, the data appear in a
2012 Feb 03
3
Cannot get "==" operator to return TRUE
I have a data.frame named "df". The dput of df is at the bottom of this e-mail.
What I'd like to do is replace the "n/a " values with NA. On Mac OSX, it works
to do this:
df[df == "n/a"] <- NA
However, it does not work on Ubuntu. See below.
Thanks in advance,
Garrett
> x <- df[27, 4] # complete data.frame dput is below
> dput(x)
"n/a?"
2011 Feb 09
3
Problem with xlsx package
I am trying to read an xlsx spreadsheet (1506 rows, 501columns) all
populated but getting the following error:
Please advise as to how to get around this issue.
> res <- read.xlsx("c:\\BSE_v2.xlsx",1)
Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl, :
java.lang.OutOfMemoryError: Java heap space
Here is the session info:
2013 Mar 20
1
htmlParse (from XML library) working sporadically in the same code
I am using htmlParse from XML library on a paricular website. Sometimes code fails, sometimes it works, most of the time id doesn't and i cannot see why. The file i am trying to parse isĀ
http://www.londonstockexchange.com/exchange/prices-and-markets/international-markets/indices/home/sp-500.html?page=0
Sometimes the following code works
n<-readHTMLTable(htmlParse(url))
But most of the
2017 Jul 11
1
Problems with time formats when importing data using readHTMLTable
Dear David,
Thank you very much. You have solved my problem, not of importing in
the right format but the date conversion. It works for me, and if I
specify the timezone tz='GMT', I get exactly the same time of the
webpage.
Sincerely yours,
Cristina
On Tue, 11 Jul 2017 07:15:43 -0700, David Winsemius wrote:
>> On Jul 11, 2017, at 6:25 AM, Cristina Silva <csilva at
2012 Jun 07
1
How to set cookies in RCurl
Hi,
I am trying to access a website and read its content. The website is a
restricted access website that I access through a proxy server (which
therefore requires me to enable cookies). I have problems in allowing Rcurl
to receive and send cookies.
The following lines give me:
library(RCurl)
library(XML)
url <- "http://www.theurl.com"
content <- readHTMLTable(url)
content
2011 May 04
1
issue with "strange" characters (locale settings)
WinXP-x32, R-21.13.0
Dear list,
I have a problem that (I think) relates to the interaction between Windows
and R.
I am trying to scrape a table with data on the Hawai'ian Islands, This is my
code:
library(XML)
u <- "http://en.wikipedia.org/wiki/Hawaii"
tables <- readHTMLTable(u)
Islands <- tables[[5]]
The output is (first set of columns):
2012 Sep 19
1
scraping with session cookies
Hi, I am starting coding in r and one of the things that i want to do is to
scrape some data from the web.
The problem that I am having is that I cannot get passed the disclaimer
page (which produces a session cookie). I have been able to collect some
ideas and combine them in the code below but I dont get passed the
disclaimer page.
I am trying to agree the disclaimer with the postForm and write
2010 Nov 04
3
postForm() in RCurl and library RHTMLForms
Hi RUsers,
Suppose I want to see the data on the website
url <- "http://www.nseindia.com/content/indices/ind_histvalues.htm"
for the index "S&P CNX NIFTY" for
dates "FromDate"="01-11-2010","ToDate"="02-11-2010"
then read the html table from the page using readHTMLtable()
I am using this code
webpage <-