dhis2-users team mailing list archive

[Ola Hodne Titlestad <olati@xxxxxxxxxx>]

On 10 November 2011 14:57, Murod Latifov <mlatifov@xxxxxxxxx> wrote:

> You are right Ola, it is mostly indicators' case with regards to average
> values, not data elements and saving zero values in most cases is
> inefficient.
> murod
>
>
Yes, and currently DHIS is not using "number of facilities that reported"
as e.g. denominator in the indicator formulas, so as far as I can see, this
doesn't really affect the indicator values either. Or how do you mean?

We have discussed to the possibility of including a variable in indicator
formulas that provides this number, and when we do, it might be more
relevant to keep track of at least some of the '0's.

Ola
--------



>
> On Thu, Nov 10, 2011 at 3:23 PM, Ola Hodne Titlestad <olati@xxxxxxxxxx>wrote:
>
>> That's true Murod, but most of the data elements collected will have an
>> aggregation operator "SUM" and never be averaged (in DHIS at least).
>> Typically the average data elements such as population estimates are never
>> '0', so this has never been an issue for data processing.
>>
>> When people have reacted to the ignoring of '0' values it has mostly been
>> related to completeness issues. As Jason says the complete button can solve
>> that problem.
>> You can also define certain data elements (called compulsory) to be
>> filled for a a dataset to be considered complete.
>>
>> Note that the default behaviour in DHIS is to ignore the '0's. If you
>> want to save them, then you must set 'Store Zero Data Value' to "Yes"
>> for each data element where you want this behaviour.
>>
>> Ola
>> ---------
>>
>> ----------------------------------
>> Ola Hodne Titlestad (Mr)
>> HISP
>> Department of Informatics
>> University of Oslo
>>
>> Mobile: +47 48069736
>> Home address: Vetlandsvn. 95B, 0685 Oslo, Norway. Googlemaps link<http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Vetlandsvn.+95B,+0685+Oslo,+Norway>
>>
>>
>>
>> On 10 November 2011 11:08, Murod Latifov <mlatifov@xxxxxxxxx> wrote:
>>
>>> Hi Mark,
>>>
>>> Ignoring true zeros will affect average figure. e.g. division by number
>>> of occurence will be wrong if you didn't save zero.
>>>
>>> regards,
>>> murod
>>>
>>>
>>> On Thu, Nov 10, 2011 at 11:52 AM, Muhire Andrew <muhireandrew@xxxxxxxxx>wrote:
>>>
>>>> Dear Mark,
>>>> Most people takes zero as a data, that is also the way i believe but in
>>>> other side there are people who dont like zero`s to appear in their
>>>> database in that case they dont store it in their data (durin the creation
>>>> of data element ) . But you have to think also on this:  zero is different
>>>> from blank fields(Because if you ignore zero, data quality for completeness
>>>> of the data fields will be more complicated because here you see all filled
>>>> fields and unfilled fields with percentage).So this means when you activate
>>>> " dont store zero", the system will automatically ignore zero`s.
>>>>
>>>>  Note that : This can also depend on the data management protocols of
>>>> the institution.
>>>>
>>>> Thanks
>>>>
>>>> ------------------------------
>>>>
>>>>
>>>> *Muhire Andrew
>>>> *
>>>> *HMIS/Ministry of Health*
>>>> *God is my provider.*
>>>>
>>>>
>>>> ------------------------------
>>>> *From:* Mark Spohr <mhspohr@xxxxxxxxx>
>>>> *To:* dhis2-users@xxxxxxxxxxxxxxxxxxx
>>>> *Sent:* Thursday, November 10, 2011 2:35 AM
>>>> *Subject:* [Dhis2-users] DHIS zeros and saving data?
>>>>
>>>> Hi,
>>>> We just started data entry and things are going well and they like the
>>>> data entry.
>>>> I just have a few questions.
>>>>
>>>> Zeros:
>>>> - All of the data items are set to "Don't store zeros".... what does
>>>> that mean?
>>>> When totaling, aggregating, averaging, etc.  will these data fields be
>>>> counted as zeros?
>>>>
>>>> Related.. on data entry I have them skipping over zero fields leaving
>>>> them blank... I assume this will be assumed to be a zero?
>>>>
>>>> Also,  there doesn't seem to be an explicit "SAVE FORM" but the data
>>>> does appear to be saved (even though the User General Settings does NOT
>>>> have the "Auto-save data entry form" box checked).  How does this work?
>>>>
>>>> Thanks for this great software!
>>>> --
>>>> Mark Spohr, MD
>>>>
>>>>
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>>>>
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>>>
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>>
>