Kind of expression in qlikview chart

[#1]

I would know if it is possible to implement this kind of expression in qlikview chart

Expression(t)=sum(qt)+expression(t-1)

so Expression is a function of the instant before. The table loaded is like

t	qt
1/1/2009	100
2/1/2009	100
3/1/2009	100
3/1/2009	200
6/4/2010	400
1/1/2019	-100
2/1/2019	-100
3/1/2019	-100
3/1/2019	-200
...	...

So I expect to see

Expression(1/1/2009)=100

Expression(2/1/2009)=100+100

Expression(3/1/2009)=100+100+100

Thanks in adavance

[sbaldwin · Accepted solution]

Hi have you tried something like this:

=rangesum(above(qt,0,rowno()))

thanks

Steve