Displaying 2 results from an estimated 2 matches for "_trends".
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trends
2010 Oct 10
1
Create single vector after looping through multiple data frames with GREP
...o the trick in terms of selecting rows.
Can any one suggest a solution?
Yours truly,
Simon Kiss
#This is the reproducible code to set-up all the data frames
require("XML")
library(XML)
#This gets the data from the web and lists them
mylist <- paste ("http://www.queensu.ca/cora/_trends/mip_",
c(1987:2001,2003:2006), ".htm", sep="")
alltables <- lapply(mylist, readHTMLTable)
#convert to dataframes
r<-lapply(alltables, function(x) {as.data.frame(x)} )
#This is just some house-cleaning; structuring all the tables so they are uniform
r[[1]][3]<-r[...
2010 Oct 06
2
Converting scraped data
Dear Colleagues,
I used this code to scrape data from the URL conatined within. This
code should be reproducible.
require("XML")
library(XML)
theurl <- "http://www.queensu.ca/cora/_trends/mip_2006.htm"
tables <- readHTMLTable(theurl)
n.rows <- unlist(lapply(tables, function(t) dim(t)[1]))
class(tables)
test<-data.frame(tables, stringsAsFactors=FALSE)
test[16,c(2:5)]
as.numeric(test[16,c(2:5)])
quartz()
plot(c(1:4), test[15, c(2:5)])
calling the values from the row of...