Giter VIP home page Giter VIP logo

pdftools-guide's Introduction

pdftools-guide with beer data

A vignette to using pdftools from ropensci.

The pdftools package can be installed from CRAN via install.packages("pdftools").

Basic usage covered here:

  • Read in PDF text/tables
  • Split raw text in tabular format
  • Combine into dataframes
  • Apply across many similar PDFs

pdftools-guide's People

Contributors

jthomasmock avatar

Stargazers

avatar avatar avatar avatar avatar avatar avatar

Watchers

avatar

Forkers

hieuqtran meersel

pdftools-guide's Issues

Minor suggestion

Really nice walkthrough. I hesitate to raise this as an issue — especially since there are always multiple ways to complete any particular task in R — but you can save quite a few lines by using readr::read_fwf() to coerce the raw text directly to a data frame.

## +/- line 141 of the Rmd file
table_start <- stringr::str_which(raw_text, "Production") ## Changed since we're dropping the first row anyway
table_end <- stringr::str_which(raw_text, "Total Used")
## Trim the table to the start/end (NB: Don't drop whitespace this time!)
table_trimmed <- raw_text[table_start:table_end]

beer_df <- 
  read_fwf(table_trimmed, fwf_empty(table_trimmed)) %>% 
  magrittr::set_colnames(c("type", "month_current", "month_prior_year", "ytd_current", "ytd_prior_year")

Again, I'm not suggesting this is inherently better, but I've found the read_fwf(., fwf_empty(.)) shortcut very useful for extracting tabular data from PDFs, as well as old school web pages that can only be read in as text initially.

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.