Gap in time series despite of Master Calendar

[Darumaka]

Hi all!

So I have created a Master Calendar in order to be able to show all months in a time series. However, with selections that contain no data observations these months are not showing.

I have already scanned this forum and can see that other people have had the same problem but I haven't been able to incorporate any of the suggested solutions/workarounds.

This is my master calender code:

StartAndEndDates:
LOAD
	MIN(MonthVar) AS FirstDate,
 	MAX(MonthVar) AS LastDate
RESIDENT UC;

// Create variables for min and max
LET vFirstDate = NUM(PEEK('FirstDate', 0, 'StartAndEndDates'));
LET vLastDate = NUM(PEEK('LastDate', 0, 'StartAndEndDates'));


TempCal:
LOAD
     Date(MonthStart($(vFirstDate),IterNo()-1),'YYYYMM') as MonthVar

AutoGenerate 1

While MonthStart($(vFirstDate),IterNo()-1) <= $(vLastDate);


MasterCalendar:
LOAD
	MonthVar,
	YEAR(MonthVar) AS YearVar,
        Date(Makedate(Left(MonthVar,4), Mid(MonthVar, 5, 2)), 'YYYY-MM') as Period,
        Month(MonthVar) as MonthName

RESIDENT TempCal;

DROP TABLES StartAndEndDates, TempCal;

 The linked variable to my data table is the MonthVar variable.

Do I need to modify my set expressions? The simplest of my set expressions is this simply counting distinct IDs where the ticket came in a specific month.

count(
	{<filterIncomingMonth={1}>} 
	distinct ticketID)

Questions

Why even bother with a master calendar if it doesn't work as it is supposed to?

Why doesn't it work?

If this is a known issue, is there somewhere described how to work around this?

Can anybody help me to fix this?

Mostly grateful for help!

[Miguel_Angel_Baeyens · Accepted solution]

Based on what you have shared, everything works as expected. If a month does not have any data of any kind (no nulls, no zeroes, nothing) it will not display on a chart, by default.

You can create "missing" values (https://community.qlik.com/t5/QlikView-Documents/Generating-Missing-Data-In-QlikView/ta-p/1491394) while in the script to make sure that all relevant dimensions (Month in your case) will have at least 1 value with zero.

Additionally, you may want to check the presentation layer as well, depending on the chart, by un-selecting "suppress zero values" in the chart properties > Presentation, un-check "suppress when value is null" in the Dimensions tab, or scaling the chart to show a step of 1 month on the Axes tab.

For one (different objects will have different properties) see the Help site: https://help.qlik.com/en-US/qlikview/April2020/Subsystems/Client/Content/QV_QlikView/Bar_Chart.htm