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From Oliver-Rainer Wittmann <orwittm...@googlemail.com>
Subject Re: [Calc][Discuss]Interoperability with Excel for SUMIF, COUNTIF, COUNTBLANK, DCOUNT, DSUM, ... with empty cells and "" and ="" empty string criteria.
Date Mon, 02 Jul 2012 09:53:45 GMT
Hi,

On 02.07.2012 10:50, Lei Wang wrote:
> Hi all,
>
> There is an old bug i65221(
> https://issues.apache.org/ooo/show_bug.cgi?id=65221). It is about
> interoperability with Excel for SUMIF, COUNTIF, COUNTBLANK, DCOUNT, DSUM,
> ... with empty cells and "" and ="" empty string criteria.
>
> There is some discussion about it, but no conclusion. Some people think
> Excel does not do well, so simply mimicking Excel behavior might not be the
> best idea. Some people think self-consistency in Calc is more important.
> Some people think compatibility with Excel is a huge concern.
>
> IMHO, compatible with Excel is very important. I suggest changing these
> formulas behavior according to Excel. Following is my consideration
> 1)Most people use Excel, compatible with Excel is very important. Excel
> does not show self-consistency in some scenarios, Calc doe not show
> self-consistency either.
> 2)Some frequently used function, such as calculating empty cells, can not
> be implemented by Calc, while Excel can.
> 3)Although Excel does not show self-consistency in some scenarios. These
> scenarios are all related with pure empty cell. Excel use following rules
>    When empty cell is criteria, only cells with value 0 meet it. This is
> true for COUNTIF, SUMIF. But not true for DSUM/DCOUNT/IF.
>    When an empty cell in a cell range, it can meet empty string criteria.
> This is true for COUNTIF, SUMIF. But not true for DSUM/DCOUNT.
>

first, I am not familar with spreadsheet formulas.

I agree that interoperability with Microsoft Excel is important. But also 
important and from my point of view even more important is the conformance to 
ODF 1.2.
I do not know, if the needed changes would cause an unconformance with ODF 1.2. 
If yes, things will be complicated.

just my thoughts from an ODF perspective.


Best regards, Oliver.

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