quick question, i am trying to get an interval of values now with
this code by toggling the tolerance limit. is there any way i can
modify this code to find values which are within limits of BOTH
latitude and longitude? currently i have to pick one or the other.
It's not really clear where your data is lat/long .. is this x/y?
Anyway, you can "&" two "query vectors" to get the data that's between
both. For instance:
rearranged[1:10, 1:5]
x y band1 VSCAT.001 soiltype
1 -124.3949 40.42468 NA NA CD
2 -124.3463 40.27358 NA NA CD
3 -124.3357 40.25226 NA NA CD
4 -124.3663 40.40241 NA NA CD
5 -124.3674 40.49810 NA NA CD
6 -124.3083 40.24744 NA 464 <NA>
7 -124.3017 40.31295 NA NA D
8 -124.3375 40.47557 NA 464 <NA>
9 -124.2511 40.11697 1 NA <NA>
10 -124.2532 40.12640 1 NA <NA>
Assume you want a range constrained by x and y:
good.x <- rearranged$x > 124.3 & rearranged$x < 125
good.y <- rearranged$y > 40.5 & rearranged$y < 41
rearranged[good.x & good.y,]
Like that?
-steve
--
Steve Lianoglou
Graduate Student: Computational Systems Biology
| Memorial Sloan-Kettering Cancer Center
| Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact
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