search for: salutori

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2004 Jul 30
5
An Interesting Issue in Samba Performance
Okay Ive had a day of it today , and I thought I would share this little support event experienced today. A Client site of mine runs Samba 2.2.8a connecting to a series of Windows XP boxes via a Netgear Switch/Hub. Earlier in the week they reported that certain applications, most notorously Symantec ACT were performing at super slow speeds. A non site investigation showed that any file
2013 Apr 16
7
the joy of spreadsheets (off-topic)
Given that we occasionally run into problems with comparing Excel results to R results, and other spreadsheet-induced errors, I thought this might be of interest. http://www.nextnewdeal.net/rortybomb/researchers-finally-replicated-reinhart-rogoff-and-there-are-serious-problems The punchline: "If this error turns out to be an actual mistake Reinhart-Rogoff made, well, all I can hope is that
2010 Jan 07
7
Strange behaviour of as.integer()
I have encountered a strange behaviour of as.integer() which does not seem correct to me. Sorry if this is just an indication of me not understanding floating point arithmetic. > .57 * 100 [1] 57 > .29 * 100 [1] 29 So far, so good. But: > as.integer(.57 * 100) [1] 56 > as.integer(.29 * 100) [1] 28 Then again: > all.equal(.57 * 100, as.integer(57)) [1] TRUE > all.equal(.29 *