R package for digitizing images of graphs
This package performs the digitization process in descrete segments. This has several advantages.
(1) Some functionality is encapsulated (2) This is useful for converting a large amount of similar data
This package can handle date data on the x axis.
Instructions for installing devtools can be found at https://www.r-project.org/nosvn/pandoc/devtools.html.
After the library is installed it is to be loaded.
Displaying plot Prior to Calibration and Data Extraction