Graph1	"first argument"
Graph2	"seond argument"
Graph3	"third argument"
Graph4	"fouth argument"
Graph5	"fifth argument"
Graph6	"sixth argumnent"
Graph7	"seventh argument"
Graph8	"eigth argument"
Graph9	"nineth argument"
Graph10	"tenth argument"

Graph11	"node"
Graph19 "must be data"
Graph20 "too many iterations"
Graph21 "lower bound violated"
Graph22	"upper bound violated"
Graph23	"must be a proportion"
Graph24	"invalid value given for proportion"
Graph25	"must be positive"
Graph26	"invalid value given for posative"
Graph27	"must be integer valued"
Graph28	"invalid integer value given"
Graph29	"node contails mixture of data and stochastic elements"
Graph30	"vector has wrong length"
Graph31	"vetor contains undefined elements"
END