I would like to add the value of an item up to midnight every day. I tried to create an item calculated in the range 00: 01-23: 59 but the function:
last("itemsum", 0) + last("itemtosum", 0)
it doesn't work because the function last("itemsum", 0) returns:
Cannot evaluate expression: "Cannot evaluate function "last(0)": item "hostname:itemsum" not supported." (because nodata at time 0)
where am I wrong? is there any way to do it?
thnx.
bb.
last("itemsum", 0) + last("itemtosum", 0)
it doesn't work because the function last("itemsum", 0) returns:
Cannot evaluate expression: "Cannot evaluate function "last(0)": item "hostname:itemsum" not supported." (because nodata at time 0)
where am I wrong? is there any way to do it?
thnx.
bb.