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03-11-2021
01:08 AM

03-11-2021
01:08 AM

I am getting "Unknown error : bad%_dimension" in monte carlo

I am getting below error while performing monte carlo. Please find the attachment.

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13 REPLIES 13

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03-11-2021
01:40 AM

03-11-2021
01:40 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Mathcad-sheet, please, not picture!

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03-16-2021
03:57 AM

03-16-2021
03:57 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Please find the attachment for mathcad file.

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03-16-2021
04:55 AM

03-16-2021
04:55 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

You have a double underscore in the definitions for mu_Go1_R2t and mu_Go2_R2b, one too many just before the 'G'. And also in the table Rvals.

Success!

Luc

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03-16-2021
05:00 AM

03-16-2021
05:00 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

removed one underscore. still the same error at Rp_fn.

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03-16-2021
05:10 AM

03-16-2021
05:10 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Units should be OK, since:

and

.

You have brackets around sigma_r2...?

Success!

Luc

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03-16-2021
05:15 AM

03-16-2021
05:15 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Removed the brackets. Still the same error.

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03-16-2021
05:17 AM

03-16-2021
05:17 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

I have no further clues, sorry. (And I'm limited to Express = montecarlo doesn't work for me.)

Luc

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03-16-2021
05:20 AM

03-16-2021
05:20 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Its ok. Thanks.

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03-11-2021
04:31 AM

03-11-2021
04:31 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

You should ALWAYS attach the worksheet, or a worksheet, that demonstrates to problem that you have.

From quick observation of the picture, you equation appears to be unit-balanced. But:

If your R values (R0, R1 and R2s) have a sigma of 0, then you probably shouldn't include them in the montecarlo.

However I doubt that you are so sure these resistor values are always exactly the same value.

So another option is to have them vary by at least 1 Ohm or so.

Success!

Luc

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03-16-2021
03:56 AM

03-16-2021
03:56 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Please find the attachment for the mathcad file.

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03-16-2021
04:43 AM

03-16-2021
04:43 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

A single attachment suffices....

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03-16-2021
08:00 AM

03-16-2021
08:00 AM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

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03-17-2021
08:25 PM

03-17-2021
08:25 PM

Re: I am getting "Unknown error : bad%_dimension" in monte carlo

Prime seems not like the units! Delete the units Siemens and it works.