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Re: [R] subsetting, aggregating and zoo

Gabor Grothendieck

2006-10-28

Replies:

On 10/28/06, antonio rodriguez <antonio.raju@(protected):
> Hi,
>
> Having an zoo object I can subset it to obtain the days where I have the
> values within some range:
>
> is.zoo(z)
> TRUE
>
> subset(z[,1], z[,1]>=5 & z[,1]<= 10) #Yields: Year(day)
>
> 1988(13) 1988(14) 1988(16) 1988(20) 1988(21) 1988(22) 1988(25)
> 1988(26)
> 7.973946 9.933518 7.978227 7.512960 6.641862 5.667780 5.721358
> 6.863729
> 1988(27) 1988(28) 1988(29) 1988(30) 1988(32) 1988(33) 1988(34)
> 1988(35)
> 9.600000 9.049846 9.213438 6.412746 5.543606 7.881596 6.373102
> 7.220562
> ..................................................................................................................
> ..................................................................................................................
>
> How do I could refine the search in order to obtain those consecutive
> days within a specific range? In the above extract:
>
> 1988(26) 1988(27) 1988(28) 1988(29) 1988(30) 1988(33) 1988(34)
> 1988(35)
> 6.863729 9.600000 9.049846 9.213438 6.412746 7.881596 6.373102
> 7.220562
>

If zz is a zoo series time(zz) or equivalently index(zz) gives the times.

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