Hi,

I execute the following code snippet.What I don't understand is, that in the
first two cases the numbers shown don't correnspondant to the input (though
I have set the options to show 22 digits). When I assign the third number
which has one place, the display of the numbers is suddenly correct.

Can anybody explain what happens here?
(this is just a sample, my real problem lies in numbers that I import from a
datafile and I don't know how to control them when this switching occurs)

###########################
options( digits=22 )
x <- matrix(NA, 3,1)
x[1] <- 6.94788635771657950
x      # 6.947886357716580     # DIFFERENT ???
        # NA
        # NA
x[1] == 6.94788635771657950   # but is the same

x[2] <- 8.34284937565404050
x      # 6.947886357716580     # DIFFERENT ???
        # 8.342849375654041     # DIFFERENT ???
        # NA
x[1] == 6.94788635771657950   # but is the same

x[3] <- 0.19043842368566377
x      # 6.94788635771657950   # NOW OK!!!
        # 8.34284937565404050   # "   "
        # 0.19043842368566377   # "   "
x[1] == 6.94788635771657950   # but is the same


###
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status
major          2
minor          3.1
year           2006
month          06
day            01
svn rev        38247
language       R
version.string Version 2.3.1 (2006-06-01)


-- 
Regards,
Hans-Peter

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