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  • 【R】小计

    > range(lifeexp)
    [1] 47.794 83.394
    > max(lifeexp)
    [1] 83.394
    > min(lifeexp)
    [1] 47.794
    > IQR(lifeexp)
    [1] 11.986
    > var(lifeexp)
    [1] 93.48446
    > sd(lifeexp)
    [1] 9.668736
    > sqrt(var(lifeexp))
    [1] 9.668736
    > round(sd(lifeexp),1)
    [1] 9.7
    > med=medion(lifeexp)
    错误: 没有"medion"这个函数
    > med=median(lifeexp)
    > range=max(lifeexp)-min(lifeexp)
    > std.dev=sd(lifeexp)
    > trim=c(med,range,std.dev,trim)
    错误: 找不到对象'trim'
    > trim=c(med, range)
    > trim=c(med,range,std.dev,trim)
    > trim
    [1] 73.235000 35.600000  9.668736 73.235000 35.600000
    > renames(trim)=c('med','range','std.dev','trim')
    错误于renames(trim) = c("med", "range", "std.dev", "trim") : 
      没有"renames<-"这个函数
    > rownames(trim)=c('med','range','std.dev','trim')
    错误于`rownames<-`(`*tmp*`, value = c("med", "range", "std.dev", "trim" : 
      不能给没有维度的对象设行名
    > trime=c(med,range,std.dev,trim))
    错误: 意外的')'"trime=c(med,range,std.dev,trim))"> trime=c(med,range,std.dev,trim)
    > ststs=cbind(trim,trime)
    警告信息:
    In cbind(trim, trime) :
      number of rows of result is not a multiple of vector length (arg 1)
    > ststs
              trim     trime
    [1,] 73.235000 73.235000
    [2,] 35.600000 35.600000
    [3,]  9.668736  9.668736
    [4,] 73.235000 73.235000
    [5,] 35.600000 35.600000
    [6,] 73.235000  9.668736
    [7,] 35.600000 73.235000
    [8,]  9.668736 35.600000
    > rownames(ststs)=c('med','range','std.dev','trim')
    错误于`rownames<-`(`*tmp*`, value = c("med", "range", "std.dev", "trim" : 
      'dimnames'的长度[1]必需与陈列范围相等
    > trim
    [1] 73.235000 35.600000  9.668736 73.235000 35.600000
    > trime
    [1] 73.235000 35.600000  9.668736 73.235000 35.600000  9.668736 73.235000
    [8] 35.600000
    > trime=trime[2:6]
    > ststs=cbind(trim,trime)
    > ststs
              trim     trime
    [1,] 73.235000 35.600000
    [2,] 35.600000  9.668736
    [3,]  9.668736 73.235000
    [4,] 73.235000 35.600000
    [5,] 35.600000  9.668736
    > rownames(ststs)=c('med','range','std.dev','trim')
    错误于`rownames<-`(`*tmp*`, value = c("med", "range", "std.dev", "trim" : 
      'dimnames'的长度[1]必需与陈列范围相等
    > rownames(ststs)=c('med','range','std.dev','trim','a')
    > ststs
                 trim     trime
    med     73.235000 35.600000
    range   35.600000  9.668736
    std.dev  9.668736 73.235000
    trim    73.235000 35.600000
    a       35.600000  9.668736
    > 
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  • 原文地址:https://www.cnblogs.com/colipso/p/3001475.html
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