CDM                     Parameter estimation for cognitive diagnosis
                        models (CDMs) by MMLE/EM or MMLE/BM algorithm.
fit                     Calculate data fit indeces
get.Mmatrix             Calculate \mathbf{M} matrix
get.PVAF                Calculate PVAF
get.R2                  Calculate McFadden pseudo-R^{2}
getOSR                  Caculate over-specifcation rate (OSR)
getQRR                  Caculate Q-matrix recovery rate (QRR)
getTNR                  Calculate true negative rate (TNR)
getTPR                  Caculate true-positive rate (TPR)
getUSR                  Caculate under-specifcation rate (USR)
getVRR                  Caculate vector recovery ratio (VRR)
sim.MQ                  Simulate mis-specifications
sim.Q                   generate a random Q-matrix
sim.data                generate response data
validation              Perform Q-matrix validation methods
