@Risk: Time Series with Irregular Intervals

@RISK Time Series requires equally spaced data; use interpolation to create evenly spaced points before fitting a model.

Jan 22, 2026
Knowledge

Title

Answer

Applies to: @RISK 6.x/7.x/8.x, Industrial Editions

Can I fit a Time Series distribution with irregularly spaced data?

No, @RISK’s Time Series methodology requires equally spaced data.

If your data are irregularly spaced, you should first use an interpolation method to create equally spaced observations, then fit a model using @RISK’s available Time Series options.

URL Name

time-series-with-irregular-intervals

TECHNIQUES AND TIPS

@Risk: Time Series with Irregular Intervals

@Risk: Time Series with Irregular Intervals

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