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...gits=1)*10 ### 8 Generating random time or x coordinate ### 9 First generating random time within recall period randomrecall<-round(runif(n=1,min=recallmin,max=recallmax)) ### 10 Second generating random time of displacement (this todrange<-todmax-todmin proprand<-runif(n=1,min=0,max=1) randomtod<-0 for(i in 1:todrange){ if (proprand>data[[9+i]] & proprand<=data[[10+i]]) randomtod=i } ### 11 Thus x<-randomtod-randomrecall ### 12 Generating population weight weight<-round(pop*data[[9+randomtod]])/100000 ### 13 Function returns a vector onesurvey consisting of three valu...

...ing x. ## Generating random time or x coordinate (through random time of displacement - random recall) ## First generating random time within recall period randomrecall<-round(runif(n=1,min=recallmin,max=recallmax)) ## Second generating random time of displacement todrange<-todmax-todminrandomtod<-0for(i in 1:todrange){if (proprand>data[[9+i]] & proprand<=data[[10+i]]) randomtod=i} Following messages are given: Warning messages:1: In 1:todrange : numerical expression has 50 elements: only the first used2: In if (proprand > data[[9 + i]] & proprand <= data[[10 + i...