Running mean filtering using Window Functions?

Hi,

can I realize a running mean filter using window functions?

What I can think of is:

SELECT avg(random) OVER (PARTITION BY floor(time_s / 60) ORDER BY floor(time_s / 60))
FROM (
SELECT generate_series(0,600,20) time_s, random()
) as data;

which averages all measurements in one minute, but not every line with its following two lines.

Any suggestions?

Best regards
Andreas

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Entwicklung * R & D

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