Tag Archive: R-stat

This article presents a bunch of code snippets that you can use as a reference when dealing with normal distribution. R makes it easy to run stats. Use, improve and share your comments please.   #the 68-96-99.7% rule for the…
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> i=20 > repeat {if (i > 100) break else {print(i); i = i + 5;}} [1] 20 [1] 25 [1] 30 [1] 35 [1] 40 [1] 45 [1] 50 [1] 55 [1] 60 [1] 65 [1] 70 [1] 75…
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> #Lets learn about log in R > ?log log computes logarithms, by default natural logarithms (log base e) log10 computes common (i.e., base 10) logarithms log2 computes binary (i.e., base 2) logarithms. > #The general form log(x, base) computes…
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> # Let’s check how R treats addition of vectors > a=c(1,2,3,4) > a [1] 1 2 3 4 > b=c(5,6,7,8) > b [1] 5 6 7 8 > #notice a and b both has same length > length(a) [1]…
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Follow the example to see the use of na.rm=T in R > x=c(0, 1, 1, 2, 3, 5, 8) #vector > x [1] 0 1 1 2 3 5 8 > mean(x) [1] 2.857143 Now, introduce a NA value in…
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Follow My code > newbornAgeMonths=c(0,1,2,3,4,5,6,7,8,9,10,11) > newbornWeightMonths=c(7.16,9.15,10.91,12.56,14,15.43,16.53,17.64,18.74,19.62,20.28,21.05) > mean(newbornWeightMonths) [1] 15.25583 > cor(newbornAgeMonths,newbornWeightMonths) [1] 0.9883767 > plot(newbornAgeMonths,newbornWeightMonths) > table=rbind(newbornAgeMonths,newbornWeightMonths) > table [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] newbornAgeMonths 0.00 1.00 2.00 3.00 4 5.00 6.00 7.00…
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Top 20 commands for R-statistical software. What is R? ·        R is a programming language. ·        A program that can do cool statistics. ·        Modeled after S and S-Plus. ·        R project was started by Robert Gentleman and Ross Ihaka of the statistics Department of the University of Auckland · The R –…
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