Код: Выделить всё
library(rvest)
library(stringr)
url <- "http://wdc.aari.ru/datasets/atlas/ecimo/chukchi/Fields/TEM/"
webpage <- read_html(url)
tbl <- html_node(webpage, "table")
Df <- as.data.frame(html_table(tbl))
NRows <- nrow(Df)
for (i in 1:NRows)
{
	CurNameFile <- Df[i,'Name']
	class(CurNameFile)
	YesPoint <- str_detect(CurNameFile,".PNG")
	print(YesPoint)
	if(YesPoint)
	{
		print(CurNameFile) 	
	}
}

