Martin Morgan questions

Martin Morgan answers

• Coverage by intersecting smaller genomic interval data over larger genomic intervals using R
• Fastest way to select i-th highest value from row and assign to new column
• Include an S4 object from an existing package as a slot in a new S4 class
• How to point between S4 objects?
• Incrementing an ID number each time a condition is met
• Accessing slots of an S4 function superclass
• How does R base C code handle vectorization?
• Reassigning value in 3d array in R is very slow [duplicate]
• subclassing S4 class that contains a list with names: access by name
• R Checking for duplicates is painfully slow, even with mclapply