R gnome and lda: found the difference
Agustin Lobo <alobo at ija.csic.es> writes:
Saving lda.default as text files from within gui="none" and from within
gui="gnome"
and comparing afterwards with diff, I get:
alobo at humboldt:> diff lda.default.gnome.txt lda.default.nognome.txt
1c1
< function (x, grouping, prior = proportions, tol = 1, method =
c("moment",
---
function (x, grouping, prior = proportions, tol = 1e-04, method =
c("moment",
61c61
< if (all(abs(w - w0) < 0,01))
---
if (all(abs(w - w0) < 0.01))
109c109 < dist <- 0 * dist - matrix(log(prior), n, ng, byrow = TRUE) ---
dist <- 0.5 * dist - matrix(log(prior), n, ng, byrow = TRUE)
It's clear then that R with the gnome gui uses a different copy of lda.default, but the output of .path.package is identical:
.path.package()
[1] "/usr/local/lib/R/library/MASS" "/usr/local/lib/R/library/ctest" [3] "/usr/local/lib/R/library/base" I don't think I can go further on my own, is this something that I should submit as a bug?
Maybe just let Martyn dig a little further and let him file the bug? The comma in "if (all(abs(w - w0) < 0,01))" strongly suggests that we have a locale problem (something is messing with LC_ALL and/or LC_NUMERIC). We have seen some of these unexpected locale changes on Microsoft platforms earlier -- as I keep saying: Gnome sometimes tries too hard to be like Windows...
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