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Number of simulated days
365
365
730
1095
1460
1825
2190
2555
2920
3285
3650
Expected number of births in Large Hospital
45
45
50
55
60
65
70
75
80
85
90
95
100
105
110
Expected number of births in Small Hospital
15
15
20
25
30
35
40
Percentage of Male births per day
(for which the probability is computed)
0.6
0.6
0.65
0.7
0.75
0.8
0.85
0.9
Chart options
R Code
par1 <- as.numeric(par1) par2 <- as.numeric(par2) par3 <- as.numeric(par3) par4 <- as.numeric(par4) numsuccessbig <- 0 numsuccesssmall <- 0 bighospital <- array(NA,dim=c(par1,par2)) smallhospital <- array(NA,dim=c(par1,par3)) bigprob <- array(NA,dim=par1) smallprob <- array(NA,dim=par1) for (i in 1:par1) { bighospital[i,] <- sample(c('F','M'),par2,replace=TRUE) if (as.matrix(table(bighospital[i,]))[2] < par4*par2) numsuccessbig = numsuccessbig + 1 bigprob[i] <- numsuccessbig/i smallhospital[i,] <- sample(c('F','M'),par3,replace=TRUE) if (as.matrix(table(smallhospital[i,]))[2] < par4*par3) numsuccesssmall = numsuccesssmall + 1 smallprob[i] <- numsuccesssmall/i } tbig <- as.matrix(table(bighospital)) tsmall <- as.matrix(table(smallhospital)) tbig tsmall numsuccessbig/par1 bigprob[par1] numsuccesssmall/par1 smallprob[par1] numsuccessbig/par1*365 bigprob[par1]*365 numsuccesssmall/par1*365 smallprob[par1]*365 bitmap(file='test1.png') plot(bigprob,col=2,main='Probability in Large Hospital',xlab='#simulated days',ylab='probability') dev.off() bitmap(file='test2.png') plot(smallprob,col=2,main='Probability in Small Hospital',xlab='#simulated days',ylab='probability') dev.off() load(file='createtable') a<-table.start() a<-table.row.start(a) a<-table.element(a,'Exercise 1.13 p. 14 (Introduction to Probability, 2nd ed.)',2,TRUE) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Number of simulated days',header=TRUE) a<-table.element(a,par1) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Expected number of births in Large Hospital',header=TRUE) a<-table.element(a,par2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Expected number of births in Small Hospital',header=TRUE) a<-table.element(a,par3) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Percentage of Male births per day<br />(for which the probability is computed)',header=TRUE) a<-table.element(a,par4) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'#Females births in Large Hospital',header=TRUE) a<-table.element(a,tbig[1]) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'#Males births in Large Hospital',header=TRUE) a<-table.element(a,tbig[2]) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'#Female births in Small Hospital',header=TRUE) a<-table.element(a,tsmall[1]) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'#Male births in Small Hospital',header=TRUE) a<-table.element(a,tsmall[2]) a<-table.row.end(a) a<-table.row.start(a) dum1 <- paste('Probability of less than', par4*100, sep=' ') dum <- paste(dum1, '% of male births in Large Hospital', sep=' ') a<-table.element(a, dum, header=TRUE) a<-table.element(a, bigprob[par1]) a<-table.row.end(a) dum <- paste(dum1, '% of male births in Small Hospital', sep=' ') a<-table.element(a, dum, header=TRUE) a<-table.element(a, smallprob[par1]) a<-table.row.end(a) a<-table.row.start(a) dum1 <- paste('#Days per Year when more than', par4*100, sep=' ') dum <- paste(dum1, '% of male births occur in Large Hospital', sep=' ') a<-table.element(a, dum, header=TRUE) a<-table.element(a, bigprob[par1]*365) a<-table.row.end(a) dum <- paste(dum1, '% of male births occur in Small Hospital', sep=' ') a<-table.element(a, dum, header=TRUE) a<-table.element(a, smallprob[par1]*365) a<-table.row.end(a) a<-table.end(a) table.save(a,file='mytable.tab')
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Computing time
0 seconds
R Server
Big Analytics Cloud Computing Center
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