[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2016-06-29 Thread daniel 
daniel added a comment.
I agree, we should really fix T117457: Do not apply rounding when formatting Quantities (unless unit conversion was applied). That should resolve the data loss issue.

The full solution is a bit more complicated, see T105623: [Task] Investigate quantification of quantity precision (+/- 1 or +/- 0.5). We have been working on this during the Wikimania hackathon, see  https://github.com/DataValues/Number/pull/66TASK DETAILhttps://phabricator.wikimedia.org/T95425EMAIL PREFERENCEShttps://phabricator.wikimedia.org/settings/panel/emailpreferences/To: danielCc: Wostr, Srittau, Nikki, Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, thiemowmde, Aklapper, D3r1ck01, Izno, Wikidata-bugs, aude, Mbch331___
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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2016-04-25 Thread Tobi_WMDE_SW 
Tobi_WMDE_SW added a project: Wikidata-Sprint-2016-04-26.

TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: Tobi_WMDE_SW
Cc: Srittau, Nikki, Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, 
mgrabovsky, daniel, thiemowmde, Aklapper, D3r1ck01, Izno, Wikidata-bugs, aude, 
Mbch331



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-12-01 Thread Lydia_Pintscher 
Lydia_Pintscher added a project: Wikidata-Sprint-2015-12-01.

TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: Lydia_Pintscher
Cc: Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, 
thiemowmde, Aklapper, Wikidata-bugs, aude, Mbch331



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-12-01 Thread Lydia_Pintscher 
Lydia_Pintscher removed a project: Wikidata-Sprint-2015-12-01.

TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: Lydia_Pintscher
Cc: Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, 
thiemowmde, Aklapper, Wikidata-bugs, aude, Mbch331



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-11-16 Thread Tobi_WMDE_SW 
Tobi_WMDE_SW added a project: Wikidata-Sprint-2015-11-17.

TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: Tobi_WMDE_SW
Cc: Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, 
thiemowmde, Aklapper, Wikidata-bugs, aude, Mbch331



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-11-03 Thread thiemowmde 
thiemowmde added a blocking task: T117457: Do not apply rounding when 
formatting Quantities (unless unit conversion was applied).

TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: thiemowmde
Cc: Thryduulf, Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, 
thiemowmde, Aklapper, Wikidata-bugs, aude



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-10-28 Thread thiemowmde 
thiemowmde added a project: Wikidata-Sprint-2015-11-03.

TASK DETAIL
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To: thiemowmde
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Aklapper, Wikidata-bugs, aude



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-09-03 Thread thiemowmde 
thiemowmde added a comment.

I changed the tasks description because when I reported this bug it was never 
exclusively about editing. The editing issue was fixed in 
https://github.com/wmde/ValueView/pull/183/files#diff-6e3ed44714251084b2ff46be5bb6b80fR54,
 as a side effect while working on T110183: [Task] Plaintext formatter should 
render unit  . But when copy pasting 
a formatted quantity value there is still the same significant data loss 
involved and the value does not survive (manual) round trips.


TASK DETAIL
  https://phabricator.wikimedia.org/T95425

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To: thiemowmde
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aude, Malyacko



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[Wikidata-bugs] [Maniphest] [Updated] T95425: [Bug] Quantity formatter rounding causes significant data loss

2015-09-03 Thread Jc3s5h 
Jc3s5h added a comment.

In https://phabricator.wikimedia.org/T95425#1603371, @daniel wrote:

> @Jc3s5h I don't see how any of the differences you mention are relevant in 
> the context of precision/uncertainty.


Let me give you another example. If you put in a measurement of 725, it goes in 
the database as amount = 725, lowerBound = 724, upperBound = 726. The 
interpretation is fairly obvious.

The death date of Benjamin Franklin in the data base is given (in JSON) as

"https://phabricator.wikimedia.org/P570":[{"mainsnak":{"snaktype":"value","property":"https://phabricator.wikimedia.org/P570","datavalue":{"value":{"time":"+1790-04-17T00:00:00Z","timezone":0,"before":0,"after":0

So this means he was born no earlier 5 PM April 16 1690, Philadelphia time, and 
no later than 5 PM April 16, 1690, Philadelpia time. Clearly the statement does 
not cover the actual range of times that Franklin died. Considering that vast 
majority of dates in Wikidata suffer from this flaw, time as implemented in 
Wikidatat serves as a poor model for anything.


TASK DETAIL
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To: Jc3s5h
Cc: Addshore, Lydia_Pintscher, Jc3s5h, Snipre, mgrabovsky, daniel, thiemowmde, 
Aklapper, Wikidata-bugs, aude, Malyacko



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