How to use MTD,YTD,LYTD

[#1]

HI

can any one explain when to use mtd,ytd expression in real time senario, i know the expressions but i dont know where to use it

i would be thank full i any one explain with example qvd.

[fasibaig]

Please refer to the below links

http://community.qlik.com/docs/DOC-4313

https://community.qlik.com/message/149340

https://iqlik.wordpress.com/2011/01/01/point-in-time-reporting-out-of-the-box/

Regards

Ishaq