Big Thx for big lesson, is no too "dark" now
Paul
W dniu niedziela, 4 stycznia 2015 17:58:28 UTC+1 użytkownik Adrian
Cuthbertson napisał:
>
> You can also work directly with the HDF5 file as an array object...
>
> using HDF5
>
> hfi=h5open("myfile.h5","w"); # create the file
> close(hfi)
>
> A = reshape(1: 120, 15, 8);
>
> hfi = h5open("myfile.h5","r+") # read/write access
>
> hfi["mygroup/A"] = A
> 15x8 Array{Int64,2}:
> 1 16 31 46 61 76 91 106
> ...
> 14 29 44 59 74 89 104 119
> 15 30 45 60 75 90 105 120
>
> data = hfi["mygroup/A"][2:3:15,3:5]
> 5x3 Array{Int64,2}:
> 32 47 62
> 35 50 65
> 38 53 68
> 41 56 71
> 44 59 74
>
> hfi["mygroup/A"][2:3,3:5]
> 2x3 Array{Int64,2}:
> 32 47 62
> 33 48 63
>
> hfi["mygroup/A"][2:3,3:5]=[-1 -2 -3; -4 -5 -6]
> 2x3 Array{Int64,2}:
> -1 -2 -3
> -4 -5 -6
>
> hfi["mygroup/A"][1:5,:]
> 5x8 Array{Int64,2}:
> 1 16 31 46 61 76 91 106
> 2 17 -1 -2 -3 77 92 107
> 3 18 -4 -5 -6 78 93 108
> 4 19 34 49 64 79 94 109
> 5 20 35 50 65 80 95 110
>
> foo = hfi["mygroup/A"]
> HDF5 dataset: /mygroup/A (file: myfile.h5)
>
> foo[1:5,:]
> 5x8 Array{Int64,2}:
> 1 16 31 46 61 76 91 106
> 2 17 -1 -2 -3 77 92 107
> 3 18 -4 -5 -6 78 93 108
> 4 19 34 49 64 79 94 109
> 5 20 35 50 65 80 95 110
>
> close(hfi)
>
> HDF5 is awesome!
>
>
>
>
> On Sun, Jan 4, 2015 at 4:59 PM, paul analyst <[email protected]
> <javascript:>> wrote:
>
>> Of course, first I read :)
>> Is there about reading range array. I need to save a range of In analogy
>> to.
>>
>> A = reshape (1: 120, 15, 8)
>> h5write ("/ tmp / test2.h5", "mygroup2 / A", A)
>> data = h5read ("/ tmp / test2.h5", "mygroup2 / A" (2: 3: 15: 3: 5))
>>
>> Paul
>>
>>
>> W dniu niedziela, 4 stycznia 2015 14:14:03 UTC+1 użytkownik Tim Holy
>> napisał:
>>>
>>> If I understand correctly, then yes, that's possible. See the HDF5 docs.
>>>
>>> --Tim
>>>
>>> On Sunday, January 04, 2015 04:25:13 AM paul analyst wrote:
>>> > How to overwrite to an existing file, only range of data?
>>> > In HDF5 can do this?
>>> > I have an array of zeros 10 x 10
>>> > I need an existing file owerwrite range rand (5x5), for example.
>>> > Existingfile [2: 7.3: 8]
>>> > Paul
>>>
>>>
>
