Pasting the answers from the comments to an answer so that the question can be closed.
Install the cluster.datasets package and its dependencies
install.packages(c("cluster.datasets"), dependencies = TRUE)
load cluster.datasets
library(cluster.datasets)
load the dataset life.expectancy.1971
,
data(life.expectancy.1971)
look at the dataset life.expectancy.1971
,
life.expectancy.1971
#> country year m0 m25 m50 m75 f0 f25 f50 f75
#> 1 Algeria 1965 63 51 30 13 67 54 34 15
#> 2 Cameroon 1964 34 29 13 5 38 32 17 6
#> 3 Madagascar 1966 38 30 17 7 38 34 20 7
#> 4 Mauritius 1966 59 42 20 6 64 46 25 8
#> 5 Reunion 1963 56 38 18 7 62 46 25 10
#> 6 Seychelles 1960 62 44 24 7 69 50 28 14
#> 7 South Africa (Nonwhite) 1961 50 39 20 7 55 43 23 8
#> 8 South Africa (White) 1961 65 44 22 7 72 50 27 9
#> 9 Tunisia 1960 56 46 24 11 63 54 33 19
#> 10 Canada 1966 69 47 24 8 75 53 29 10
#> 11 Costa Rica 1966 65 48 26 9 68 50 27 10
#> 12 Dominican Republic 1966 64 50 28 11 66 51 29 11
#> 13 El Salvador 1961 56 44 25 10 61 48 27 12
#> 14 Greenland 1960 60 44 22 6 65 45 25 9
#> 15 Grenada 1961 61 45 22 8 65 49 27 10
#> 16 Guatemala 1964 49 40 22 9 51 41 23 8
#> 17 Honduras 1966 59 42 22 6 61 43 22 7
#> 18 Jamaica 1963 63 44 23 8 67 48 26 9
#> 19 Mexico 1966 59 44 24 8 63 46 25 8
#> 20 Nicaragua 1965 65 48 28 14 68 51 29 13
#> 21 Panama 1966 65 48 26 9 67 49 27 10
#> 22 Trinidad 1962 64 43 21 7 68 47 25 9
#> 23 Trinidad 1967 64 43 21 6 68 47 24 8
#> 24 US 1966 67 45 23 8 74 51 28 10
#> 25 US (Nonwhite) 1966 61 40 21 10 67 46 25 11
#> 26 US (White) 1966 68 46 23 8 75 52 29 10
#> 27 US 1967 67 45 23 8 74 51 28 10
#> 28 Argentina 1964 65 46 24 9 71 51 28 10
#> 29 Chile 1967 59 43 23 10 66 49 27 12
#> 30 Columbia 1965 58 44 24 9 62 47 25 10
#> 31 Ecuador 1965 57 46 25 9 60 49 28 11
cluster.datasets
and load it? For me, it is working correctly after loading the package.library(cluster.datasets); data(life.expectancy.1971); life.expectancy.1971# country year m0 m25 m50 m75 f0 f25 f50 f75
1 Algeria 1965 63 51 30 13 67 54 34 15 – akrun