Dear workers, I have a data of length 1136. Below is the code I use to get the means B. It worked fine and I had the mean calculated and plotted.
I wish to plot the error bars as well. I already plotted such means with error bars before. Please see attached for example. I tried to redo the same plot but unlikely could not get around it as I lost my system containing the script. Among many attempts, I tried: library(gplots) plotmeans(errors~AB,xlab="Factor A",ylab="mean errors", p=.68, main="Main effect Plot",barcol="black") Nothing worked. I would really be thankful should somebody return me to the track. Many, many thanks for your time. Ogbos A sample of the data is: S/N A B 1 -5 64833 2 -4 95864 3 -3 82322 4 -2 95591 5 -1 69378 6 0 74281 7 1 103261 8 2 92473 9 3 84344 10 4 127415 11 5 123826 12 6 100029 13 7 76205 14 8 105162 15 9 119533 16 10 106490 17 -5 82322 18 -4 95591 19 -3 69378 20 -2 74281 21 -1 103261 22 0 92473 23 1 84344 24 2 127415 25 3 123826 26 4 100029 27 5 76205 28 6 105162 29 7 119533 30 8 106490 31 9 114771 32 10 55593 33 -5 85694 34 -4 65205 35 -3 80995 36 -2 51723 37 -1 62310 38 0 53401 39 1 65677 40 2 76094 41 3 64035 42 4 68290 43 5 73306 44 6 82176 45 7 75566 46 8 89762 47 9 88063 48 10 94395 49 -5 80651 50 -4 81291 51 -3 63702 52 -2 70297 53 -1 64117 54 0 71219 55 1 57354 56 2 62111 57 3 42252 58 4 35454 59 5 33469 60 6 38899 61 7 64981 62 8 85694 63 9 79452 64 10 85216 65 -5 71219 66 -4 57354 67 -3 62111 68 -2 42252 69 -1 35454 70 0 33469 71 1 38899 72 2 64981 73 3 85694 74 4 79452 75 5 85216 76 6 81721 77 7 91231 78 8 107074 79 9 108103 80 10 7576 A<-matrix(rep(-5:10,71)) B<-matrix(data) AB<-data.frame(A,B) x= B f<-factor(A) AB<- tapply(x,f,mean) x<--5:10 plot(x,AB,type="l")
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