index=xxx source="udp:4005" |eval startTime = strptime(TransactionStartTime,"%FT%T.%3N%Z") | eval endTime = strptime(TransactionEndTime,"%FT%T.%3N%Z")| eval responseTime=round(((endTime-startTime)),3)|timechart avg(responseTime) by OperationName usenull=f useother=f
You can edit panel and choose how to handle null values. If you are plotting area chart as per your screenshot. You currently have the Null Values in your timechart treated as Gaps, you can change the same to Zero (equivalent of writing fillnull command) or else mark as Connect (which is equivalent of writing filldown command).
@karthi2809 were you able to try the solution? Did it work for you?
Those dots are single data points for getEobByUid, without neighbouring data points to form a solid area.
What do you want to see instead of single data points?