melt: Convert an object into a molten data frame.
Description
This the generic melt function. See the following functions
for the details about different data structures:
Usage
melt(data, ..., na.rm = FALSE, value.name = "value")
Arguments
...
further arguments passed to or from other methods.
na.rm
Should NA values be removed from the data set? This will
convert explicit missings to implicit missings.
value.name
name of variable used to store values