6  xt methods

The following functions and methods are available for xt objects:

• toxt(): create new xt objects
• as.xt(): convert an existing list to an xt object
• plot.xt(): plot an xt object using rtemis
• write.xtjson(): write an xt object to a JSON file
• read.xtjson(): read an xt object from a JSON file created by write.xtjson()