@summerura Following are two run anywhere example based on the Sample Data and SPL you have provided. So if the option is not working for you please provide the SPL you have tried and the final output results you are getting. Option 1 | gentimes start=-10
| eval _time=starttime
| fields _time
| eval Date=strftime(_time,"%Y/%m/%d"), diskUsageTB=replace(substr(tostring(random()),1,3),"(\d{1})(\d{2})","\1,\2")
| stats max(diskUsageTB) as TB by Date
| eval TB=replace(TB,",","") Option 2 | gentimes start=-10
| eval _time=starttime
| fields _time
| eval diskUsageTB=replace(substr(tostring(random()),1,3),"(\d{1})(\d{2})","\1,\2")
| timechart span=1d max(diskUsageTB) as TB
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