how to group number of users depend on the below ?

if i have 15 users, i need to put them into 4 groups

where in each group i will select the users depend on large distance between them

as i have a matrix 15*15 that shows me the distance between each user

any support please

Answer 1

[Image Analyst]

Try kmeans().

Answer 2

[sara alaraby]

more help please as i can't write it

i tried but i can't