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diffdf compares twodata.frame objects and provides a detailed summary of any differences that were found between them. The package has it's origins in supporting QC workflows for product development within the pharmaceutical industry aiming at being a light weight alternative to SAS'sPROC COMPARE.

Currently diffdf supports the following:

• Checking for differences in:
  • Values
  • Attributes
  • Classes
  • Column names
  • Number of observations
  • Column ordering
• Matching rows by key/id variables
• Fuzzy comparisons (i.e. treating doubles and integers as the same)
• Extracting datasets of different rows

For more information on features please consult the vignette and man pages.

Ifdiffdf isn't quite right for your use case then the following are other packages that provide similar functionality that may be more appropriate:

• daff
• compareDF
• waldo
• diffobj
• arsenal

You can install the released version of diffdf fromCRAN with:

install.packages("diffdf")

And the development version fromGitHub with:

# install.packages("devtools")devtools::install_github("gowerc/diffdf")

library(diffdf)iris2<-irisfor (iin1:3)iris2[i,i]<-i^2iris2$new_var<-"hello"class(iris2$Species)<-"some class"diffdf(iris,iris2)