Great.
On Tue, Dec 3, 2013 at 12:27 PM, Adebusoye Anifalaje <bus...@hisp.org>wrote: > Thanks Lars, > > Works without the negative minimum values. > > Busoye > > > On 3 Dec 2013, at 09:18, Lars Helge Øverland <larshe...@gmail.com> wrote: > > Ops sorry back-port didn't go through, fixed it now, download again in 30 > min. > > Lars > > > > On Tue, Dec 3, 2013 at 10:08 AM, Busoye Anifalaje <bus...@hisp.org> wrote: > >> Yes, set the data elements to Zero or positive integer >> On Dec 3, 2013 7:47 AM, "Lars Helge Øverland" <larshe...@gmail.com> >> wrote: >> >>> Hi, >>> >>> Just checking, did you remember to actually set number type to >>> positive/zero or positive number? >>> On Dec 3, 2013 12:08 AM, "Adebusoye Anifalaje" <bus...@hisp.org> wrote: >>> >>>> Just tried on Version: 2.13 Build revision: 12888. Still generating >>>> negative values! Deleted all the values from the minmaxdataelement table >>>> and ran the min-max value generation again but negative values still >>>> coming through for some minimum numbers (example attached). >>>> >>>> Am I missing something? >>>> >>>> >>>> Busoye >>>> >>>> <Min-Max Negative Values.tiff> >>>> >>>> >>>> >>>> >>>> On 2 Dec 2013, at 18:53, Lars Helge Øverland <larshe...@gmail.com> >>>> wrote: >>>> >>>> Hi, >>>> >>>> the issue with negative values occurring as min-values for data >>>> elements of type positive / zero-or-positive number, and positive values >>>> occurring as max-values for data elements of type negative number have now >>>> been fixed in trunk and 2.13. >>>> >>>> regards, >>>> >>>> Lars >>>> >>>> >>>> >>>> On Wed, Nov 6, 2013 at 12:00 AM, Jason Pickering < >>>> jason.p.picker...@gmail.com> wrote: >>>> >>>>> Hi Dapo., >>>>> >>>>> This is just a design issue with DHIS2. There needs to be some better >>>>> statistical methods employed to generate the min max, or a means to >>>>> specify >>>>> that the minimum should be zero for all values. There is no linkage >>>>> between >>>>> the value type and the method which the mix-max uses to generate its >>>>> values. In our case, we use a combination of R and SQL to calculate >>>>> "better" values on a regular basis. A bit of a hack, but the current >>>>> methods are simply not working for us either. >>>>> >>>>> Regards, >>>>> Jason >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Wed, Nov 6, 2013 at 12:23 AM, Adebusoye Anifalaje >>>>> <bus...@hisp.org>wrote: >>>>> >>>>>> Hi all, >>>>>> >>>>>> To introduce a variation on this theme of generating min-max values: >>>>>> I expected that if you set data element number type to Zero of Positive >>>>>> Integer this should alter the distribution (in this case skew to the >>>>>> right >>>>>> as Jason put it) and avoid the negative minimum values. From the tests I >>>>>> have done, this is not happening. >>>>>> >>>>>> The negative mim values are a real pain, anyone with a solution yet? >>>>>> >>>>>> Regards, >>>>>> >>>>>> Busoye >>>>>> >>>>>> On 31 May 2013, at 14:53, Gulam Khan <gm-k...@criticalsoftware.com> >>>>>> wrote: >>>>>> >>>>>> Hi Dapo, >>>>>> If you were to generate the min-max values automatically, insert them >>>>>> into the database, and an authorized user was to change them, then they >>>>>> would be overwritten. >>>>>> >>>>>> You can automatically generate these values through the data >>>>>> administration module by dataset and orgunit in Data >>>>>> Administration->Min-Max Value Generation . The problem is you often end >>>>>> up >>>>>> with a lot of dubious values, such as negative numbers. This is a result >>>>>> of >>>>>> the Gaussian distribution model which is applied (without taking any >>>>>> skewness into effect). I have attached a plot from a real DHIS2 database, >>>>>> which show sthat the distribution of many in DHIS2 are skewed left or >>>>>> right >>>>>> (more often to the right) . Use of an unbounded, normal distribution for >>>>>> calculation of the min-max is therefore not really appropriate. The >>>>>> standard deviation approach is also highly sensitive to outliers, which >>>>>> also creates problems for the outlier analysis if this approach is used. >>>>>> Anyway, I digress. Just wanted to highlight that the in-built functions >>>>>> for >>>>>> calculation of the min-max are rather primitive, and may not always lead >>>>>> to >>>>>> good results. >>>>>> >>>>>> I am not so sure about the ability to restrict the time periods for >>>>>> which the mix-max is generated. I think you would end up with far too few >>>>>> data points to make a meaningful standard deviation. You are really >>>>>> looking >>>>>> for the extremes with the min-max, and restricting to such a a narrow >>>>>> time >>>>>> interval would probably not give you these extremes. >>>>>> >>>>>> Regards, >>>>>> Jason >>>>>> >>>>>> >>>>>> >>>>>> On Thu, Sep 19, 2013 at 11:47 PM, Dapo Adejumo < >>>>>> dapo_adej...@yahoo.com> wrote: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> It will be great if the generation of min-max values can be >>>>>>> automated based on a global setting ( ability to select last 3,6 or 12 >>>>>>> months data) . I am curious what happens to these “hard coded” min/max >>>>>>> values when the database is set to generate min/max values from the >>>>>>> frontend – I will assume they are discarded since they reside in the >>>>>>> same >>>>>>> table? Or which takes precedence ? >>>>>>> >>>>>>> Thanks. >>>>>>> >>>>>>> >>>>>>> >>>>>>> ................................................ >>>>>>> >>>>>>> >>>>>>> >>>>>>> *Regards,* >>>>>>> >>>>>>> >>>>>>> >>>>>>> *Dapo Adejumo* >>>>>>> >>>>>>> *+234803363677* >>>>>>> >>>>>>> *skype : dapojorge* >>>>>>> >>>>>>> >>>>>>> >>>>>>> *From:* Dhis2-devs [mailto:dhis2-devs-bounces+dapo_adejumo= >>>>>>> yahoo....@lists.launchpad.net] *On Behalf Of *Jason Pickering >>>>>>> *Sent:* Thursday, September 19, 2013 6:28 PM >>>>>>> *To:* Juma Lungo >>>>>>> *Cc:* dhis2-devs >>>>>>> >>>>>>> *Subject:* Re: [Dhis2-devs] Setting MinMax Values >>>>>>> >>>>>>> >>>>>>> >>>>>>> I think I agree with Lars as well. Our use case was we wanted to >>>>>>> restrict values between 0 and 31, and not do it with a validation rule, >>>>>>> to >>>>>>> provide visual clues during data entry. >>>>>>> >>>>>>> >>>>>>> >>>>>>> As an aside, one may also want to calculate these values and save >>>>>>> them to the database. The current algorithm uses a standard deviation >>>>>>> approach, which is problematic, in that in many cases the data which is >>>>>>> typically observed does not follow a normal Gaussian distribution. Other >>>>>>> statistical models often provide better estimates of the mix/max, but >>>>>>> currently, cannot be calculated automatically by the system. If these >>>>>>> values are calculated externally in some statistical package, they can >>>>>>> be >>>>>>> inserted back into the system (or even automated). >>>>>>> >>>>>>> >>>>>>> >>>>>>> Regards, >>>>>>> >>>>>>> Jason >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Thu, Sep 19, 2013 at 6:25 PM, Juma Lungo <jlu...@yahoo.com> >>>>>>> wrote: >>>>>>> >>>>>>> I agree with Lars >>>>>>> >>>>>>> >>>>>>> >>>>>>> Lungo >>>>>>> >>>>>>> >>>>>>> ------------------------------ >>>>>>> >>>>>>> *From:* Lars Helge Øverland <larshe...@gmail.com> >>>>>>> *To:* Jason Pickering <jason.p.picker...@gmail.com> >>>>>>> *Cc:* dhis2-devs <dhis2-devs@lists.launchpad.net> >>>>>>> *Sent:* Thursday, September 19, 2013 2:43 PM >>>>>>> *Subject:* Re: [Dhis2-devs] Setting MinMax Values >>>>>>> >>>>>>> >>>>>>> >>>>>>> Hi Conrad, >>>>>>> >>>>>>> >>>>>>> >>>>>>> the min-max data element is per org unit and data element like you >>>>>>> say, so it applies to all current and future periods by definition. I >>>>>>> don't >>>>>>> know your use-case... but in general one might want to think twice >>>>>>> before >>>>>>> setting the same max value for all facilities, since they usually have >>>>>>> very >>>>>>> different catchment population and hence natural variations in numbers. >>>>>>> >>>>>>> >>>>>>> >>>>>>> Lars >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Mailing list: https://launchpad.net/~dhis2-devs >>>>>>> Post to : dhis2-devs@lists.launchpad.net >>>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs >>>>>>> More help : https://help.launchpad.net/ListHelp >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> <skewness.png>_______________________________________________ >>>>>> Mailing list: https://launchpad.net/~dhis2-devs >>>>>> Post to : dhis2-devs@lists.launchpad.net >>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs >>>>>> More help : https://help.launchpad.net/ListHelp >>>>>> >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Mailing list: https://launchpad.net/~dhis2-devs >>>>>> Post to : dhis2-devs@lists.launchpad.net >>>>>> Unsubscribe : https://launchpad.net/~dhis2-devs >>>>>> More help : https://help.launchpad.net/ListHelp >>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Mailing list: https://launchpad.net/~dhis2-devs >>>>> Post to : dhis2-devs@lists.launchpad.net >>>>> Unsubscribe : https://launchpad.net/~dhis2-devs >>>>> More help : https://help.launchpad.net/ListHelp >>>>> >>>>> >>>> >>>> > >
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