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ZY
ZY
Level I

Is there an easy way to get the FWHM of a normal distribution curve from Distribution function ?

Nov 27, 2017 01:36 AM (5481 views)

Dear JMP community,

 

Is there an easy way to get the FWHM(full width at half maximum) of a normal distribution curve from Distribution function ?

 

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ian_jmp
Staff ian_jmp
Staff
Solution

Re: Is there an easy way to get the FWHM of a normal distribution curve from Distribution function ?

Created: Nov 27, 2017 04:21 AM  |  Last Modified: Nov 27, 2017 04:22 AM (5980 views)  |  Posted in reply to message from ZY 11-27-2017

Apparently, the FWHM of a Gaussian is about 2.355 * sigma. So once you have an estimate of sigma from the Gaussian fit you are done (use 'Analyse > Distribution' then go to the 'Continuous Fit > Normal' option from the red triangle). 

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ian_jmp
Staff ian_jmp
Staff
Solution

Re: Is there an easy way to get the FWHM of a normal distribution curve from Distribution function ?

Created: Nov 27, 2017 04:21 AM  |  Last Modified: Nov 27, 2017 04:22 AM (5981 views)  |  Posted in reply to message from ZY 11-27-2017

Apparently, the FWHM of a Gaussian is about 2.355 * sigma. So once you have an estimate of sigma from the Gaussian fit you are done (use 'Analyse > Distribution' then go to the 'Continuous Fit > Normal' option from the red triangle).