da2_dfddm               Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to a (threshold
                        separation)
da_dfddm                Partial Derivative of 5-parameter DDM PDF with
                        respect to a (threshold separation)
ddm                     Estimation of 5-Parameter DDM
ddm-methods             Methods for ddm objects
dfddm                   Density of Ratcliff Diffusion Decision Model
dsv2_dfddm              Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to sv (inter-trial
                        variability in the drift rate)
dsv_dfddm               Partial Derivative of 5-parameter DDM PDF with
                        respect to sv (inter-trial variability in the
                        drift rate)
dt02_dfddm              Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to t0 (non-decision time)
dt0_dfddm               Partial Derivative of 5-parameter DDM PDF with
                        respect to t0 (non-decision time)
dt2_dfddm               Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to t (response time)
dt_dfddm                Partial Derivative of 5-parameter DDM PDF with
                        respect to t (response time)
dv2_dfddm               Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to v (drift rate)
dv_dfddm                Partial Derivative of 5-parameter DDM PDF with
                        respect to v (drift rate)
dw2_dfddm               Second-Order Partial Derivative of 5-parameter
                        DDM PDF with respect to w (initial bias)
dw_dfddm                Partial Derivative of 5-parameter DDM PDF with
                        respect to w (initial bias)
med_dec                 Medicial decision data
pfddm                   Distribution of Ratcliff Diffusion Decision
                        Model
