Class intervals

List class intervals.

intervals.freq(x)

Arguments

x	class graph.freq, histogram or numeric

Value

It show interval classes.

See also

polygon.freq, table.freq, stat.freq, graph.freq, sturges.freq, join.freq, ogive.freq, normal.freq

Examples

library(agricolae)
# example 1
data(growth)
h<-hist(growth$height,plot=FALSE)
intervals.freq(h)
#>      lower upper
#> [1,]     6     7
#> [2,]     7     8
#> [3,]     8     9
#> [4,]     9    10
#> [5,]    10    11
#> [6,]    11    12
#> [7,]    12    13
# example 2
x<-seq(10,40,5)
y<-c(2,6,8,7,3,4)
intervals.freq(x)
#>      lower upper
#> [1,]    10    15
#> [2,]    15    20
#> [3,]    20    25
#> [4,]    25    30
#> [5,]    30    35
#> [6,]    35    40
histogram <- graph.freq(x,counts=y)