A friendly r-helper asked me to use dput() to output some of my data. The results are below:
structure(list(ID = 2004:2008, p1 = c(1L, 1L, 1L, 1L, 0L), p2 = c(0L, 0L, 0L, 0L, 1L), p3 = c(0L, 0L, 0L, 0L, 0L), p4 = c(0L, 0L, 1L, 1L, 0L), p5 = c(0L, 0L, 0L, 0L, 0L), p6 = c(1L, 1L, 0L, 1L, 1L ), p7 = c(0L, 0L, 1L, 1L, 0L), p8 = c(1L, 0L, 0L, 0L, 0L), p9 = c(0L, 0L, 1L, 1L, 0L), p10 = c(1L, 0L, 1L, 0L, 0L), p11 = c(0L, 0L, 0L, 1L, 0L), p12 = c(1L, 0L, 0L, 1L, 0L), p13 = c(0L, 0L, 1L, 0L, 0L), p14 = c(0L, 0L, 0L, 0L, 1L), p15 = c(0L, 0L, 1L, 1L, 0L), p16 = c(0L, 0L, 0L, 0L, 0L), p17 = c(0L, 1L, 0L, 0L, 0L), p18 = c(0L, 0L, 0L, 0L, 0L), p19 = c(0L, 0L, 0L, 0L, 1L), p29 = c(0L, 0L, 0L, 1L, 0L), p21 = c(0L, 1L, 0L, 1L, 0L), lat1 = c(29.266, 29.27057, 29.24012, 29.22798, NA), lat2 = c(NA, NA, NA, NA, 29.27332), lat3 = c(NA, NA, NA, NA, NA), lat4 = c(NA, NA, 29.23984, 29.26174, NA), lat5 = c(NA, NA, NA, NA, NA), lat6 = c(29.21016, 29.27799, NA, 29.24824, 29.27873), lat7 = c(NA, NA, 29.24511, 29.26614, NA), lat8 = c(29.27555, NA, NA, NA, NA), lat9 = c(NA, NA, 29.24437, 29.24437, NA), lat10 = c(29.26266, NA, 29.2633, NA, NA), lat11 = c(NA, NA, NA, 29.26547, NA), lat12 = c(29.26146, NA, NA, 29.2581, NA), lat13 = c(NA, NA, 29.24212, NA, NA), lat14 = c(NA, NA, NA, NA, 29.27507), lat15 = c(NA, NA, 29.27403, 29.27403, NA), lat16 = c(NA, NA, NA, NA, NA ), lat17 = c(NA, 29.26448, NA, NA, NA), lat18 = c(NA, NA, NA, NA, NA), lat19 = c(NA, NA, NA, NA, 29.27167), lat20 = c(NA, NA, NA, 29.24208, NA), lat21 = c(NA, 29.27493, NA, 29.26212, NA), long1 = c(-89.96268, -89.95791, -90.00651, -90.02192, NA), long2 = c(NA, NA, NA, NA, -89.9543), long3 = c(NA, NA, NA, NA, NA), long4 = c(NA, NA, -90.00668, -89.98277, NA), long5 = c(NA, NA, NA, NA, NA), long6 = c(-90.0387, -89.95317, NA, -89.98473, -89.94817), long7 = c(NA, NA, -90.00278, -89.95956, NA), long8 = c(-89.9545, NA, NA, NA, NA), long9 = c(NA, NA, -90.02349, -90.02349, NA), long10 = c(-89.96309, NA, -89.96299, NA, NA), long11 = c(NA, NA, NA, -89.97777, NA), long12 = c(-89.97981, NA, NA, -89.99077, NA), long13 = c(NA, NA, -90.00163, NA, NA), long14 = c(NA, NA, NA, NA, -89.95477), long15 = c(NA, NA, -89.95444, -89.95444, NA), long16 = c(NA, NA, NA, NA, NA), long17 = c(NA, -89.96214, NA, NA, NA), long18 = c(NA, NA, NA, NA, NA), long19 = c(NA, NA, NA, NA, -89.95428), long20 = c(NA, NA, NA, -90.06522, NA), long21 = c(NA, -89.95477, NA, -89.98407, NA)), .Names = c("ID", "p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", "p16", "p17", "p18", "p19", "p29", "p21", "lat1", "lat2", "lat3", "lat4", "lat5", "lat6", "lat7", "lat8", "lat9", "lat10", "lat11", "lat12", "lat13", "lat14", "lat15", "lat16", "lat17", "lat18", "lat19", "lat20", "lat21", "long1", "long2", "long3", "long4", "long5", "long6", "long7", "long8", "long9", "long10", "long11", "long12", "long13", "long14", "long15", "long16", "long17", "long18", "long19", "long20", "long21"), row.names = c(NA, 5L), class = "data.frame") Thanks again - SR Steven H. Ranney On Wed, Dec 19, 2012 at 1:42 PM, Steven Ranney <steven.ran...@gmail.com> wrote: > All - > > I have a large data frame that looks like > > ID p1 p2 p3...p20 Lat1 Lat2 Lat3...Lat20 > Long1 Long2 Long3...Long20 > 1 0 0 1 0 NA NA 29.xx NA > NA NA -89.xx NA > 2 1 0 0 1 27.xx NA NA 29.00 > -88.00 NA NA -89.xx > 3 0 0 0 0 NA NA NA NA > NA NA NA NA > ... > [truncated] > > where length(ID) = 1300 and the zeroes and ones in the p1-p20 column > correspond to values in the Lat1-Lat20 and Long1-Long20 columns; a 0 > indicates no corresponding value and 1 indicates there is a > corresponding value. > > I'd like to create a dataframe that is > > ID p Lat Long > 1 3 29.xx -89.xx > 2 1 27.xx -88.xx > 2 20 29.xx -89.xx > ... > > and so on, such that for every ID I have, there is a corresponding row > with each Latn and Longn that may exist. > > My problem is that I don't know how to do that in R. I can set up > simple "for" loops, but I don't know how to set up something that has > a "for" and an "if/else" statement. And frankly, with the number of > pX, LatX, and LongX, I think that my if/else statement would be huge > and unwieldly. > > Could anyone offer any assistance? > > Thanks for your help - > > SR > Steven H. Ranney ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.