我正在使用R刮擦亚马逊客户评论，并遇到了一个错误，我希望有人可以深入了解。
我注意到R无法从所有评论中刮除指定的节点（通过使用SelectorGadget找到）。每次我运行脚本时，我都会检索不同的数量，但从来都不是整体。这是非常令人沮丧的，因为目的是刮擦评论并将其编译成CSV文件，以后可以使用R进行R。如果产品有200个评论，当我运行脚本时，有时我会得到150个评论，有时我会得到75个评论。评论等，但不是整个200。在我重复刮擦之后，这个问题似乎发生了。
我还遇到了一些超时错误，特别是" open.connection（x，" rb"）：达到超时的错误。
我该如何解决这个继续刮擦？我是初学者，但任何帮助或见识都非常感谢！
url <- "https://www.amazon.com/Match-Mens-Wild-Cargo-Pants/product-reviews/B009HLOZ9U/ref=cm_cr_arp_d_show_all?ie=UTF8&reviewerType=all_reviews&pageNumber="
N_pages <- 204
A <- NULL
for (j in 1: N_pages){
pant <- read_html(paste0(url, j))
B <- cbind(pant %>% html_nodes(".review-text") %>% html_text() )
A <- rbind(A,B)
}
tail(A)
print(j)
这不适合您？
pagenumber ="N_pages <- 204
A <- NULL
for (j in 1: N_pages){
pant <- read_html(paste0(url, j))
B <- cbind(pant %>% html_nodes(".review-text") %>% html_text() )
A <- rbind(A,B)
}
tail(A)
[,1]
[1938,] "This is really a good item to get. Trendy, probably you can choose a different color, it fits good but I wouldn't say perfect."
[1939,] "I don't write reviews for most products, but I felt the need to do so for these pants for a couple reasons. First, they are great pants! Solid material, well-made, and they fit great. Second, I want to echo those who say you need to go up in size when you order. I wear anywhere from 32-34, depending on the brand. I ordered these in a 36 and they fit like a 33 or 34. I really love the look and feel of these, and will be ordering more!"
[1940,] "I bought the green one before, it is good quality and looks nice, than I purchased the similar one, but the khaki color, but received absolutely different product, different material. really disappointed."
[1941,] "These pants are great! I have been looking to update my wardrobe with a more edgy style; these cargo pants deliver on that. Paired with some casual sneakers or a decent nubuck leather boot completes the look from the waist down. The lazy-casual look is great when traveling, as are the many pockets. I wore these pants on a recent day trip to NYC and traveled comfortably with essential items contained in the 8 pockets. I placed a second order shortly after my first pair arrived because I like them so much. Shipping and delivery is also fairly fast, considering these pants ship from China!"
[1942,] "Pants are awesome, just like the picture. The size runs small, so if you order them I would order them bigger than normal. I usually wear a 34inch waist because i dont like my pants snug, these pants fit more like a 32 inch waist.Other than that i love them!"
[1943,] "the good:Pants are made from the durable cotton that has a nice feel; have a lot of useful features and roomy well placed pockets; durable stitching.the bad:Pants will shrink and drier/hot water is not recommended. Would have been better if the cotton was pretreated to prevent shrinking. I would gladly gave up the belt if I wouldn't have to wary about how to wash these pants.the ugly:faux pocket with a zipper. useless feature. on my pair came with a bright gold zipper, unlike a silver in a picture."