Genetates a virtual cross correlated clay silt sand + Z dataset,
where Z is a virtual 4th variable correlated to the texture.
TT.dataset(n, seed.val = NULL, css.names = NULL, text.sum = NULL)
Julien Moeys [aut, cre], Wei Shangguan [ctb], Rainer Petzold [ctb], Budiman Minasny [ctb], Bogdan Rosca [ctb], Nic Jelinski [ctb], Wiktor Zelazny [ctb], Rodolfo Marcondes Silva Souza [ctb], Jose Lucas Safanelli [ctb], Alexandre ten Caten [ctb]