[R] how to get a histogram of an POSIXct vector ?

[Peter.Marx at knorr-bremse.com]

Hi,

search on web indicates that R also includes a hist method on POSIXct
vectors.

My (perhaps too unexperienced) approach below yields an error.

Could somebody give me a hint what's wrong ?

Peter 


> str(samples)
`data.frame':   7500 obs. of  1 variable:
 $ DateTime:'POSIXct', format: chr  "2006-07-20 00:10:08" "2006-07-20
00:11:17" "2006-07-20 00:11:23" 

>hist(samples)
Error in hist.default(samples) : 'x' must be numeric