mirror of
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61 lines
1.4 KiB
R
Executable File
61 lines
1.4 KiB
R
Executable File
Auto = read.table("Auto.data")
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dim(Auto)
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range(Auto)
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Auto = na.omit(Auto)
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fix(Auto)
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range(Auto)
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dim(Auto)
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Auto = read.csv("Auto.csv",header=T,na.strings="?")
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Auto = read.table("Auto.data",header=T,na.strings="?")
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dim(Auto)
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range(Auto)
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Auto=na.omit(Auto)
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range(Auto)
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Auto[1:4,]
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Auto
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range(Auto)
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names(Auto)
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fix(Auto)
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plot(cylinders,mpg)
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plot(cylinders,mpg)
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attach(Auto)
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plot(cylinders,mpg)
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names()
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names(Auto)
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range(mpg)
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range(names(Auto))
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sapply()
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sapply(1:3)
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sapply(1:3,range(x)))
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sapply(1:3,range(x))
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sapply(names(),range(x))
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help(sapply)
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sapply(names(Auto),range(x))
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sapply(names(Auto),range(X))
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help(sapply)
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sapply(names(Auto),range)
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help(sapply)
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sapply(Auto,range)
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cylinders=as.factor(cylinders)
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lapply(Auto,class)
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auto = Auto
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lapply(auto,class)
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summary(Auto)
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plot(Auto)
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pairs(Auto)
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sapply(Auto,range)
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origin <- as.factor(origin)
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cols.qlt = names(auto)
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cols.qlt
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cols.qlt = names(auto) %in% c("name,"origin")
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cols.qlt2 = names(auto) %in% c("name,"origin")
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cols.qlt = names(auto) %in% c("name","origin")
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cols.qlt
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lapply(auto[, !cols.qlt], range)
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lapply(auto[, !cols.qlt], function(x){ c('mean'=mean(x), 'sd'=sd(x)))})
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lapply(auto[, !cols.qlt], function(x){ c('mean'=mean(x), 'sd'=sd(x))})
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lapply(auto[, !cols.qlt], function(x){ c('mu'=mean(x), 'sigma'=sd(x))})[B
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lapply(auto[-(10:85), !cols.qlt], function(x){ c('mean'=mean(x), 'sd'=sd(x))})
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lapply(auto[-(10:85), !cols.qlt], function(x){ c('mu'=mean(x), 'sigma'=sd(x))})
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q()
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