[R] change the attribute of a column

[Thomas Preuth]

Hello,

I have a column which is filled by numbers, but is attributed as list.
How can I change the attributes into numeric to use statistic operations?

Greetings, Thomas

-- 
Thomas Preuth
Swiss federal institutes for forest, snow and landscape research WSL/SLF
Fluuelastrasse 11
CH- 7260 Davos
Switzerland

0041-81-4170-359
preuth at slf.ch
www.wsl.ch
www.slf.ch