Stacks rectangular datasets on top of each other, possibly performing several type coercions along the way. For large datasets, depends on the ff package. Provides an aggressive version of ffbase::compact for data that may appear be real-typed but is in fact int/short/byte. For many purposes plyr::rbind.fill may be more appropriate, but for some kinds of survey data, the rules here work better.
|Author||Mike Malecki <Mike.Malecki at yougov.com>|
|Date of publication||2014-03-21 01:19:40|
|Maintainer||Mike Malecki <Mike.Malecki@yougov.com>|
|License||MIT + file LICENSE|
compact: Compact a ff vector or ffdf data frame
ensureDate: Ensure that x is a Date
ffStack: Merge a data.frame into an ffdf data.frame-alike
find_min_vmode: Find minimum vmode for non-ff x
matrixIntegrate: Integrate matrices based on their dim names
padNA: Add a length of NAs before or after x (used in Stacking)
preparedf: Prepare a data.frame for as.ffdf to not break
Stack: Stack Combine data frames with column names that do not...
upgradevmode: Upgrade vmode of ff column while stacking
vecEqual: Test equality and order of a vector
vectorIntegrate: Integrate characters with careful ordering of result