That is true Mr Akumba validation rules work on defined periods
···
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
From: Barnabas Akumba akumbabarns@gmail.com
Date: 11/04/2018 19:09 (GMT+03:00)
To: Alex Macharia amacharia@gmail.com
Cc: dhis2-users@lists.launchpad.net
Subject: Re: [Dhis2-users] VALIDATION RULES
Hello Alex Macharia,
The validation rule analysis page gives you the ability to select a
range of dates (Start Date and End Date). This means if you want to
validate data for last three months, you’ll have to select the First
date of the First Month i.e. 1st January, 2018 and Last date of March,
i.e. 31st March, 2018.
This will validate all the data that falls between the dates selected
and give you the corresponding output.
I don’t know if this addresses your concern?
Regards
On 4/11/18, Alex Macharia amacharia@gmail.com wrote:
Hi,
I there a way of creating a VALIDATION RULE that checks into other periods?
I wish to validate current month in reference to data entered 3 months ago.
Thanks
–
ALEX MACHARIA
–
Barnabas AKUMBA
Mobile: +2348036195778
Skype: barnabas.akumba
Mailing list: DHIS 2 Users in Launchpad
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : DHIS 2 Users in Launchpad
More help : ListHelp - Launchpad Help
Hi Alex,
At the moment the only way to compare the data between different months in validation rules is to use predictors – define a predictor to pull the data into a different data element in the current period from the past period (like 3 months ago if you want – use a predictor sequential sample count of 3 and a skip count of 2.) Then use a validation rule to compare the two data elements in the same period. For more about predictors, see https://docs.dhis2.org/master/en/user/html/manage_predictor.html
The downsides of this are you have to define extra data elements and predictors, and run the predictors before you do the validation, and store extra data in the database.
For the future, we are looking at possible extensions to expressions that would let you process past period data and current period data in the same expression. If you would like this to apply to validation rules, please submit a Jira issue to this effect, and preferably tell us more about the application – like what kind of data you have and why you want to compare it between months. This will help us to prioritize the work if we know more about the use case. 
Then let me know and I will link the issue to the Jira Epic at https://jira.dhis2.org/browse/DHIS2-3187 where we are gathering these requirements.
Thanks!
Cheers,
Jim
···
On Wed, Apr 11, 2018 at 1:03 PM, arungatom65 arungatom65@gmail.com wrote:
That is true Mr Akumba validation rules work on defined periods
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
From: Barnabas Akumba akumbabarns@gmail.com
Date: 11/04/2018 19:09 (GMT+03:00)
To: Alex Macharia amacharia@gmail.com
Cc: dhis2-users@lists.launchpad.net
Subject: Re: [Dhis2-users] VALIDATION RULES
Hello Alex Macharia,
The validation rule analysis page gives you the ability to select a
range of dates (Start Date and End Date). This means if you want to
validate data for last three months, you’ll have to select the First
date of the First Month i.e. 1st January, 2018 and Last date of March,
i.e. 31st March, 2018.
This will validate all the data that falls between the dates selected
and give you the corresponding output.
I don’t know if this addresses your concern?
Regards
On 4/11/18, Alex Macharia amacharia@gmail.com wrote:
Hi,
I there a way of creating a VALIDATION RULE that checks into other periods?
I wish to validate current month in reference to data entered 3 months ago.
Thanks
–
ALEX MACHARIA
–
Barnabas AKUMBA
Mobile: +2348036195778
Skype: barnabas.akumba
Mailing list: https://launchpad.net/~dhis2-users
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : https://launchpad.net/~dhis2-users
More help : https://help.launchpad.net/ListHelp
Mailing list: https://launchpad.net/~dhis2-users
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : https://launchpad.net/~dhis2-users
More help : https://help.launchpad.net/ListHelp
–
Jim Grace
Core developer, DHIS 2
HISP US Inc.
http://www.dhis2.org
Thanks All,
The issue is more of what Jim Grace has addressed and has pointed me to the right direction which am embarking on trying.
The issue is to create one validation rule for the data entry checks which would pull data from the past period (3 months) sum it and validate with this month’s data entry
Example: the entry in this month of april (e.g 10) should be less than equal to the entry made in January(<=10).
Jim, there are different aspects of data that need to be compared retrospectively but one scenario of the data I have is on Linkage for instance, and this is on HIV health related
data from the previous HIV guidelines which focused on the linkage of clients who tested positive and were supposed to be linked to care immediately or within a period of three months.
I appreciate for the assistance
···
On Wed, Apr 11, 2018 at 9:24 PM, Jim Grace jim@dhis2.org wrote:
Hi Alex,
At the moment the only way to compare the data between different months in validation rules is to use predictors – define a predictor to pull the data into a different data element in the current period from the past period (like 3 months ago if you want – use a predictor sequential sample count of 3 and a skip count of 2.) Then use a validation rule to compare the two data elements in the same period. For more about predictors, see https://docs.dhis2.org/master/en/user/html/manage_predictor.html
The downsides of this are you have to define extra data elements and predictors, and run the predictors before you do the validation, and store extra data in the database.
For the future, we are looking at possible extensions to expressions that would let you process past period data and current period data in the same expression. If you would like this to apply to validation rules, please submit a Jira issue to this effect, and preferably tell us more about the application – like what kind of data you have and why you want to compare it between months. This will help us to prioritize the work if we know more about the use case. Then let me know and I will link the issue to the Jira Epic at https://jira.dhis2.org/browse/DHIS2-3187 where we are gathering these requirements.
Thanks!
Cheers,
Jim
–
On Wed, Apr 11, 2018 at 1:03 PM, arungatom65 arungatom65@gmail.com wrote:
That is true Mr Akumba validation rules work on defined periods
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
From: Barnabas Akumba akumbabarns@gmail.com
Date: 11/04/2018 19:09 (GMT+03:00)
To: Alex Macharia amacharia@gmail.com
Cc: dhis2-users@lists.launchpad.net
Subject: Re: [Dhis2-users] VALIDATION RULES
Hello Alex Macharia,
The validation rule analysis page gives you the ability to select a
range of dates (Start Date and End Date). This means if you want to
validate data for last three months, you’ll have to select the First
date of the First Month i.e. 1st January, 2018 and Last date of March,
i.e. 31st March, 2018.
This will validate all the data that falls between the dates selected
and give you the corresponding output.
I don’t know if this addresses your concern?
Regards
On 4/11/18, Alex Macharia amacharia@gmail.com wrote:
Hi,
I there a way of creating a VALIDATION RULE that checks into other periods?
I wish to validate current month in reference to data entered 3 months ago.
Thanks
–
ALEX MACHARIA
–
Barnabas AKUMBA
Mobile: +2348036195778
Skype: barnabas.akumba
Mailing list: https://launchpad.net/~dhis2-users
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : https://launchpad.net/~dhis2-users
More help : https://help.launchpad.net/ListHelp
Mailing list: https://launchpad.net/~dhis2-users
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : https://launchpad.net/~dhis2-users
More help : https://help.launchpad.net/ListHelp
Jim Grace
Core developer, DHIS 2
HISP US Inc.
http://www.dhis2.org
–
ALEX MACHARIA