[R-SIG-Mac] NaN and linear algebra
stefano.iacus at unimi.it
Fri Mar 18 15:31:01 CET 2005
After some tests it appears to be vecLib specific.
If have I time, I'll try to see what's the results building with a
On 18/mar/05, at 13:30, Bill Northcott wrote:
> On 17/03/2005, at 10:00 PM, r-sig-mac-request at stat.math.ethz.ch wrote:
>> I don't know whether this is a bug, or a problem with the way I built
>> 2.0.1 (under Mac OS 10.3 on a G5), or something else. Can anyone else
>> confirm (or otherwise) that this happens in their R 2.0.1 on Mac OS X?
>> [,1] [,2] [,3]
>> [1,] NaN NaN NaN
>> [2,] NaN NaN NaN
>> [3,] NaN NaN NaN
>> Error in solve.default(d) : Lapack routine dgesv: system is exactly
>> Error in chol(d) : the leading minor of order 1 is not positive
>>  0
> These are features/bugs of Apple's LAPACK library. You would do
> better to ask Apple support or float the question on the scitech list.
> They have nothing to do with R code.
> Bill Northcott
> R-SIG-Mac mailing list
> R-SIG-Mac at stat.math.ethz.ch
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