Filter values when using range vectors

[Amir Yeshurun]

Hello,

I am using the following query in order to get a range vector:

api_timing{api_name="<NAME>"}[1d]

Next, I want to get the average of the range vector. To do that, I am using avg_over_time - BUT, when there is a single NaN value inside the range vector, the operation returns NaN. I tried to run:

avg_over_time(api_timing{api_name="<NAME>"}[1d] >=0)

and got the following error:

Binary expression must contain only scalar and instant vector types

Any suggestions about how to filter NaN values in this case?

Thank you!