Post output from:
dput(data2)
My guess is the 3rd column is a factor vector.
--
David
Sent from my iPhone
> On Mar 15, 2014, at 12:03 PM, Mike Miller <mbmille...@gmail.com> wrote:
>
>> On Fri, 14 Mar 2014, Duncan Murdoch wrote:
>>
>>> On 14-03-14 8:59 PM, Mike Miller wrote:
>>> What I'm using:
>>> R version 3.0.1 (2013-05-16) -- "Good Sport"
>>> Copyright (C) 2013 The R Foundation for Statistical Computing
>>> Platform: x86_64-unknown-linux-gnu (64-bit)
>>
>> That's not current, but it's not very old...
>>
>>> According to some docs, options(digits) controls numerical precision in
>>> output of write.table(). I'm using the default value for digits:
>>>> getOption("digits")
>>> [1] 7
>>> I have a bunch of numbers in a data frame that are only a few digits to the
>>> right of the decimal:
>>
>> That's not enough to reproduce this. Put together a self-contained
>> reproducible example if you're wondering why something behaves as it does.
>> With just a bunch of output, you'll just get uninformed guesses.
>
>
> Thanks for the tip. Here's what I've done:
>
>> data2 <- data[c(94,120),c(18,20,21)]
>> save(data2, file="data2.Rdata")
>> q("no")
>
> $ R
>> load("data2.Rdata")
>> data2
> V18 V20 V21
> 94 0.008 0.008 0.000064
> 120 0.023 0.023 0.000529
>> write.table(data2, file="data2.txt", sep="\t", row.names=F, col.names=F)
>
> $ cat data2.txt
> 0.00800000000000001 0.00800000000000001 6.40000000000001e-05
> 0.0229999999999999 0.0229999999999999 0.000528999999999996
>
> The data2.Rdata file is attached to this message.
>
> I guess that is enough to reproduce this exact finding. I don't know how it
> works in general.
>
> I don't have a newer version of R available right now. It did the same thing
> on an older version (2.15.1).
>
> Interestingly, on a different machine with an even older version (2.12.2) I
> see something a little different:
>
> 0.008 0.008 6.40000000000001e-05
> 0.0229999999999999 0.0229999999999999 0.000528999999999996
>
> Best,
> Mike
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