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How to draw continuous lines with null data?

I have 5 datasets to recored the temperature and humidity at 5 different locations, and each location record it once an hour but different timing. e.g. Site-A records it at every quarter to the hour, Site-B records it at half past every hour. I appended those into 1 query. and draw the line chart and got following. Up to 15:00, there are only outside temperature so I see the line, but after that no lines show up and only dots. But I like each dataset continues smoothly, and like to see only lines in different colors to compare those. 


Could someone help solve this? 







Community Support
Community Support

Hi @monjiju747 ,


I did the following test and I can't seem to reproduce your problem. Is it possible to provide a test data model (with sensitive information removed) and I will answer you as soon as possible.





Looking forward to your reply.

Best Regards,

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hello Henry,


Thanks for your effort here, I sent some data via message, could you take a look at it?




Super User
Super User

@monjiju747 , if you column is of data time type(not text), The you should be able to change axis type to continuous

Dear amitchandak,


Thanks for your response! My data is not a text, it's a Date/Time. So it's strange. If I remove the time from X axis or show only 1 site data,  it shows only line. 

a) no time in X axis


b) only Site-C temperature





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