index=summary_security earliest=-1d@d latest=now orig_sourcetype=dhcp | timechart count by orig_sourcetype | eval marker = "today" | eval _time = _time+1800 | append [search index=summary_security earliest=-7d@d latest=-6d@d orig_sourcetype=dhcp | timechart count by orig_sourcetype | eval marker = "last week" | eval _time = _time+86400*7+1800] | timechart sum(dhcp) by marker
I'm using the above search in order to create a week over week comparison of my sourcetype counts. The problem is that my "last week" data flatlines after the day i'm looking at and continues for a week into the future creating a bunch of white space in my graph.
Any ideas how to solve this one?