OK...x[min(which(x!=0)):length(x)] does the trick!
I guess the coffee is slowly but surely working! .
Manoj
----- Original Message -----
From: ManojW
To: R-help
Sent: Monday, May 30, 2005 2:12 PM
Subject: Re: Vector Manipulation
I should clarify that I tried x[cumsum(x)!=0] but the problem is that I might
have negative numbers in the vector that can potentially make cumsum(x) equal
to zero somewhere down the line in the vector.
Manoj
----- Original Message -----
From: ManojW
To: R-help
Sent: Monday, May 30, 2005 2:00 PM
Subject: Vector Manipulation
Dear All,
For any given vector, I want to extract a sub-vector such that the new
vector skips all zeros, if any , at the start of vector. Is it possible to
achieve this w/o looping?
E.G : > x = c(0,0,1,2,3,4,5,0,0,8,9)
> y = somefunc(x);
> y
[1] 1 2 3 4 5 0 0 8 9
In the example above, I want to skip the two leading zeroes till I hit
the non-zero (1 in the above case). I also want to retain all zero after the
first non-zero digit (again 1 in this case).
Hope I am not confusing you guys. Thanks in advance for your help.
Regards
Manoj
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