Displaying 4 results from an estimated 4 matches for "funovit".
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funovits
2017 Jun 22
2
Unexpected behaviour of base::qr()$rank
2017-06-22 19:49 GMT+02:00 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
> On 22.06.2017 17:11, Bernd Funovits wrote:
>>
>> Hello,
>>
>> I experienced some unexpected behaviour while determining the rank of matrices (sometimes 1x1 matrices):
>> base::qr(matrix(1e-20))$rank returns 1 (incorrect)
>> base::qr(diag(c(1, 1e-20)))$rank returns 2 (incorrect)
>
>
> Why...
2017 Jun 22
2
Unexpected behaviour of base::qr()$rank
Hello,
I experienced some unexpected behaviour while determining the rank of
matrices (sometimes 1x1 matrices):
base::qr(matrix(1e-20))$rank returns 1 (incorrect)
base::qr(diag(c(1, 1e-20)))$rank returns 2 (incorrect)
Best regards,
Bernd
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major
2017 Jun 22
1
Unexpected behaviour of base::qr()$rank
2017-06-22 20:31 GMT+02:00 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>
>
> On 22.06.2017 20:09, I?aki ?car wrote:
>>
>> 2017-06-22 19:49 GMT+02:00 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>>>
>>> On 22.06.2017 17:11, Bernd Funovits wrote:
>>>>
>>>>
>>>> Hello,
>>>>
>>>> I experienced some unexpected behaviour while determining the rank of
>>>> matrices (sometimes 1x1 matrices):
>>>> base::qr(matrix(1e-20))$rank returns 1 (incorrect)
>>&...
2017 Jun 22
0
Unexpected behaviour of base::qr()$rank
On 22.06.2017 20:09, I?aki ?car wrote:
> 2017-06-22 19:49 GMT+02:00 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>> On 22.06.2017 17:11, Bernd Funovits wrote:
>>>
>>> Hello,
>>>
>>> I experienced some unexpected behaviour while determining the rank of matrices (sometimes 1x1 matrices):
>>> base::qr(matrix(1e-20))$rank returns 1 (incorrect)
>>> base::qr(diag(c(1, 1e-20)))$rank returns 2 (incorr...