EViews.com

Posted: **Wed May 07, 2014 9:14 am**

Hello,
I am having a problem adjusting my data for seasonality.

My time series contain both positive and negative values (e.g. % quarterly budget deficit).
When attempting to perform the Census X-13 seasonal adjustment (using basic auto options) I get an error message:
"ERROR: Multiplicative or log-additive seasonal adjustment cannot be done with a series with zero or negative values. No seasonal adjustment this run."

Any tips to overcome this?

Here is an example of my workfile:

bd.wf1: Quarterly Budget Deficits %; (12.69 KiB) Downloaded 312 times

Thanks in advance!

Posted: **Wed May 07, 2014 9:34 am**

Use additive seasonal adjustment. Pseudo-additive might work as well, I'm not sure how the latter is computed.

Posted: **Wed May 07, 2014 10:18 am**

I will try using only the additive seasonal adjustment method in the relevant menu of the Census X-13 option.
Thank you very much.

EViews.com

Seasonal Adjustment [series with positive & negative values]

Seasonal Adjustment [series with positive & negative values]

Re: Seasonal Adjustment [series with positive & negative val

Re: Seasonal Adjustment [series with positive & negative val