Friends , case back:
R = convert (Matrix {BigFloat}, cor (A))
Ok, I have an array. Now I have carefully calculated in advance eigenvectors
:
(m, v) = e and g (R).
ERROR: No methods. :/
How to calculate these vectors with high precision?
Paul
W dniu sobota, 4 stycznia 2014 10:15:34 UTC+1 użytkownik Ivar Nesje napisał:
>
> Why do you want a BigFloat matrix?
>
> I am not saying it is not usefull, but in the examples here, you do the
> calculation first and then the conversion. Also when dealing with BigFloat
> it is important that you do not initialize them with with Float64 values
> that are not exactly what you want them to be, because lots of base 10
> fractions are not represetable as a base 2 fraction.
>
> julia> BigFloat(0.1)
> 1.000000000000000055511151231257827021181583404541015625e-01 with 256 bits
> of precision
>
> julia> BigFloat("0.1")
> 1.000000000000000000000000000000000000000000000000000000000000000000000000000002e-01
>
> with 256 bits of precision
>
> The better option is to initialize with a string.
>
>
> kl. 10:04:54 UTC+1 lørdag 4. januar 2014 skrev Andreas Noack Jensen
> følgende:
>>
>> convert(Matrix{BigFloat},cor(A))
>>
>>
>> 2014/1/4 paul analyst <[email protected]>
>>
>>> How to create a correlation matrix (each other) with precision Big Float
>>>
>>> r = BigFloat (cor (A))
>>>
>>> does not work ...
>>>
>>> Paul
>>>
>>
>>
>>
>> --
>> Med venlig hilsen
>>
>> Andreas Noack Jensen
>>
>
