Man pages for Stack
Stylized concatenation of data.frames or ffdfs

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