Basically new to [R] - as a programming environment at least (had lots
of recent experience compiling it on our Opteron-based servers). Was
trying to write some simple little scripts (in advance of porting over
some bigger things from other environments - like MATLAB), when I
realized that handling counters in loop constructs in [R] is not
patently obvious (at least, IMO, compared to other languages).
Suppose I want to iterate something from 1 to 100, using a step size of
(say) 5. Trying the obvious
for(x in 1:5:100) {
print(x)
}
(Perhaps obviously, I've borrowed the MATLAB convention to some degree).
Or, looping from 0 -> 1 by 0.01?
I've dug through what [R] documentation I have, and all I can find is
the somewhat obtuse.
For example, I can use
x <- seq(0,1, by=.01)
But not
for(x in (0,1,by=0.01)) {
print(x)
}
What about things that are slickly handled in C++, like
for (node=start; value<threshold && node!=end; node=node->next) { ... }
OK - I'm stumped (and happy to humiliate myself with what has surely got
to be trivial). I'm happy with a simple basic counter at this point.
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