[Kst] Sparse Ascii data

[Peter Kümmel]

Hi Ben,

could you send a sample csv file?
Maybe your format triggers the replacement.

Thanks,
Peter

On 03.12.2013 12:45, Ben Lewis wrote:
> Hi Peter,
>
> Something seems to have broken since you added the ASCII config option "Interpret empty values as: Null, NaN, Previous
> value"
>
> The 2013.11.20 build works fine for me but 2013.11.28 and 2013.12.01 builds do not work.
>
> When I try to open a CSV file I get all vectors full of zeros or NaNs depending on which option I select.
>
> Also, all the ASCII config settings are sticky now even when I don't select "Apply these settings as default"
>
> Regards, Ben
>
>
> On 29/11/2013 6:11 AM, Peter Kümmel wrote:
>> I added a configure option how empty values should be handled:
>> null, nan, or the previous value should be used.
>>
>> Peter
>>
>> On 20.11.2013 10:04, David McMinn wrote:
>>> Hi Nicolas,
>>>
>>> When you say that Kst skips the point you should perhaps make it clear that it causes a gap in the line (it stops
>>> drawing at the previous point and starts drawing at the next point), rather than drawing a line directly from the
>>> previous to the next point.
>>>
>>> Cheers.
>>>
>>> -----Original Message-----
>>> From: kst-bounces at kde.org [mailto:kst-bounces at kde.org] On Behalf Of Brisset, Nicolas
>>> Sent: 20 November 2013 08:41
>>> To: kst at kde.org
>>> Subject: Re: [Kst] Sparse Ascii data
>>>
>>> Peter,
>>>
>>> It is indeed the responsibility of the data source to decide what to do with missing data. The nice way to handle it
>>> is to return a NaN value, so that Kst skips the point when drawing the curve. I think we used to do this in Kst 1.x,
>>> and that's what we should do here.
>>>
>>> Nicolas
>>>
>>> -----Ursprüngliche Nachricht-----
>>> Von: kst-bounces at kde.org [mailto:kst-bounces at kde.org] Im Auftrag von Peter Kümmel
>>> Gesendet: Mittwoch, 20. November 2013 08:33
>>> An: kst at kde.org
>>> Betreff: [Kst] Sparse Ascii data
>>>
>>> Is there already a way to handle sparse Ascii data (data with missing values at some rows)?
>>>
>>> N, Col1, Col2
>>> 1,    1,    2
>>> 2,     ,    2
>>> 3,    1,    2
>>>
>>> The idea is to a have a plot for Col1 which is a horizontal line at 1 which does not draw down to zero at row 2.
>>>
>>> Is it possible to set a "ignore this value" in the vector, or is it the responsibility of the data source plugin to
>>> not add a zero-value at such a entry when reading the file?
>>>
>>> Thanks,
>>> Peter
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