I have a problem using kmeans in a ubuntu system. I seem to be getting different results! My data is say:

x<- c(0.1295..,-0.58928,-0.244252,-0.41614,-0.58804,-0.74628,-0.9045188,-1.050903,-1.197288,-1.3353877,-1.47348656,-1.607894)

when I perform kmeans function and want to get only the max value of kmeans$centers in a windows system,

means <- max(kmeans(x, 3)$centers)
means
[1] -0.05892

When I run the exact code in ubuntu 12.04 system, I get a completely different answer

means <- max(kmeans(x,3)$centers)
means
[1] -0.1482334

So, I performed the kmeans again without the max function

means <- kmeans(x, 3)
means$centers
NULL

But, means itself has all the entries

means


Available components:
[1] "cluster" "centers" "tots" "withinss" "tot.withinss"
[6] "betweenss" "size" "iter" "ifault"

There seems to be something changing between the functionality in windows and linux. Can anyone help me figuring this out?!