How to scrape with table class name with R?

Issue

I am tryng to scrape several web pages, particulaty some tables in the pages.
But the problem is the places of tables change with respect to each page.
Here is my code.

url <- paste0("https://en.wikipedia.org/wiki/2011%E2%80%9312_Welsh_Premier_League")
webpage <- read_html(url)
j<-webpage%>% html_node(xpath='//*[@id="mw-content-text"]/div[1]/table') %>%html_table(fill=T)

This code works fine, but I want to scrape the other seaons, too. The place of table changes in every season.
My question is I found that the table class that I want to scrape is named as "wikitable plainrowheaders", as below. I would like to know how to scrape with table class name. How to scrape all tables with table class named as "wikitable plainrowheaders" in a wikipedia page?

<table class="wikitable plainrowheaders" style="text-align:center;font-size:100%;">

Solution

Since you know the table class name, just change the corresponding xpath.

library(rvest)

url <- paste0("https://en.wikipedia.org/wiki/2011%E2%80%9312_Welsh_Premier_League")

webpage <- read_html(url)

j <- webpage %>%
  html_nodes(xpath="//table[@class='wikitable plainrowheaders']") %>%
  html_table(fill=T) 

Answered By - bdedu