1.1

• functions dbtpn, pbtpn, rbtpn and est.btpn are included
• solve2 from skewMLRM instead of solve is used to perform the matrix inversions

1.2

• functions dftpn, pftpn, qftpn, rftpn and est.ftpn are included

1.3

• functions dftpn, pftpn, qftpn, rftpn and est.ftpn were changed to dftp, pftp, qftp, rftp
• function choose.ftp was included
• probability density function was included with latex format for all the models

1.4

• functions dutpn, putpn, qutpn, rutpn and est.utpn are included

1.5

• fixed error in est.utpn function

1.6

• functions dftp, pftp, qftp, rftp, est.ftp and choose.ftp were changed to dfts, pfts, qfts, rfts, est.fts and choose.fts, respectively
• corrected computation of AIC and BIC for est.utpn function

1.7

• included type 3 and 4 for utpn model
• est.utpn function provided the estimation for sigma instead of the regression coefficients when no covariates are avaliable

1.8

• corrected some issues in est.uptn function

1.9

• function dtpt, ptpt, rtpt and est.tpt are included