英文:
Read table from a website into R Studio and create a dataframe with the info
问题
我正在处理一个需要将从网站上找到的表格读入R Studio并格式化的项目，以便我可以创建数据的图形表示。我一直在尝试使用magick包，使用image_read和image_display函数来实现这一点。但在我尝试显示图像后，我一直收到以下错误：
错误：ImageMagick没有构建X11支持
并且我的数据框中没有真正的输出。
以下是我最近尝试使其工作的内容：
img <- image_read("https://i2.wp.com/www.brookings.edu/wp-content/uploads/2022/01/Table-2.png?w=768&crop=0%2C0px%2C100%2C9999px&ssl=1",
density = "300")
image_display(img)
img_data <- image_data(img)
table_df <- data.frame(img_data)
table_df
这会返回以下错误：
错误：在默认情况下将x[[i]]的类‘c("bitmap", "rgb")’强制转换为数据框
我需要它将图像的数据作为数据框返回，然后我可以为不同的图形表示进行操作。
英文:
I'm working on project that requires a table I found on a website to be read into R studio and formatted so I can create graphical representations of the data. I have been attempting to do this via the magick package using the image_read and image_display functions. I continue to get the following error after I attempt to display the image:
Error: ImageMagick was built without X11 support
and no real output in my dataframe object.
Here is what I most recently tried to get this to work:
img <- image_read("https://i2.wp.com/www.brookings.edu/wp-content/uploads/2022/01/Table-2.png?w=768&crop=0%2C0px%2C100%2C9999px&ssl=1",
density = "300")
image_display(img)
img_data <- image_data(img)
table_df <- data.frame(img_data)
table_df
This returns the following error:
Error in as.data.frame.default(x[[i]], optional = TRUE) :
cannot coerce class ‘c("bitmap", "rgb")’ to a data.frame
I need it to return the data from the image as a dataframe that I can then manipulate for different graphical representations.
答案1
得分: 1
我能够使用 R 中的tesseract包解决这个问题，使用表格的 PDF 版本。
library(tesseract)
# 加载 PDF 文件并转换为文本
pdf_file <- "C:/Users/Table_Q2.pdf"
text <- tesseract::ocr(pdf_file)
英文:
I was able to solve this using the tesseract package in R using a pdf version of the table.
library(tesseract)
# Load the PDF file and convert to text
pdf_file <- "C:/Users/Table_Q2.pdf"
text <- tesseract::ocr(pdf_file)
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