On Mon, 24 Mar 2014, Gabor Grothendieck wrote:
Please provide this in reproduble form by displaying the output of
dput(head(s95.z))
structure(c(85, 80, 85, NA, 90, 110, 8, 6, 5, NA, 14, 9, NA,
NA, NA, NA, NA, NA, 30, 1214, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, 0.004,
0.006, 0.014, 0.01, 0.008, 0.006, 3.6, 2.4, 3.4, 4, 4.4, 4.5,
NA, NA, NA, NA, 0.02, 0.01, NA, NA, NA, NA, 0, 0, 0.01, 0.01,
0.01, 0.01, 0.01, 0.01, 0, 0, 0, 0, 0, 0, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA), .Dim = c(6L, 15L), .Dimnames = list(
NULL, c("EC", "SO4", "TDS", "Q", "pH", "Al", "al.cen", "As",
"Mg", "Mn", "mn.cen", "Se", "se.cen", "Zn", "zn.cen")), index = structure(c(8106,
8147, 8177, 8189, 8345, 8428), class = "Date"), class = "zoo")
Rich
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