[Blindmath] R for Stats brief tutorial requested

[Matthew_2010]

HI all,

I have compiled a file with some posts from this list's archives and I'm 
hoping I might get a little more help regarding R for stats. In particular, 
I'm reading through the R manual and can't seem to figure out how to do the 
most basic of computations. If one of you has just a few minutes to help me 
get started I would appreciate it greatly. Please outline how one is to 
launch R, configure the terminal mode, then find the standard deviation for 
the numbers 4 5 and 6. I want to understand what is being presented by R but 
can't do so since I know nothing about the syntax for entering data. If 
there is a way of entering a data set and receiving summary stats such as 
one can do with Excel I would appreciate this much more since I will be able 
to see what R can do. At this point I'm going in circles reading about 
everything but what I need to know about basic R data entry. Any help will 
be greatly appreciated.

Thanks,

Matthew