topic Re: how to get Confidence Intervals of Quantiles of non-normal Distributions in Discussions https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941738#M109472 <P>You can ask for the custom quantiles (use the red arrow after fitting the distribution) and it provides the confidence intervals.&nbsp; Alternatively, you can right click on either the original quantiles of the data or on the fitted quantiles and use the bootstrap to get confidence intervals.&nbsp; Is that what you are looking for?</P> Tue, 14 Apr 2026 12:11:19 GMT dlehman1 2026-04-14T12:11:19Z how to get Confidence Intervals of Quantiles of non-normal Distributions https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941638#M109463 <P>Hi there,</P> <P>I would like to get the 95% confidence interval of specific quantiles/percentiles of a fitted (non-normal) distribution (e.g., SHASH fit). in the distribution platform there is a "quantile profiler" including the option "Confidence Intervals" - however, no confidence intervals are displayed in the plot (see attached image).</P> <P>Am I doing something wrong or is there a different approach of calculating the 95%CI of custom quantiles/percentiles of a non-normal distribution such as SHASH?</P> Tue, 14 Apr 2026 06:38:39 GMT https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941638#M109463 StevenMu 2026-04-14T06:38:39Z Re: how to get Confidence Intervals of Quantiles of non-normal Distributions https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941738#M109472 <P>You can ask for the custom quantiles (use the red arrow after fitting the distribution) and it provides the confidence intervals.&nbsp; Alternatively, you can right click on either the original quantiles of the data or on the fitted quantiles and use the bootstrap to get confidence intervals.&nbsp; Is that what you are looking for?</P> Tue, 14 Apr 2026 12:11:19 GMT https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941738#M109472 dlehman1 2026-04-14T12:11:19Z Re: how to get Confidence Intervals of Quantiles of non-normal Distributions https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941800#M109474 <P>unfortunately there is no CI provided despite the having the option checked (see my attached images in the original question)</P> Tue, 14 Apr 2026 15:14:19 GMT https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941800#M109474 StevenMu 2026-04-14T15:14:19Z Re: how to get Confidence Intervals of Quantiles of non-normal Distributions https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941849#M109475 <P>Using&nbsp;<a href="https://community.jmp.com/t5/user/viewprofilepage/user-id/53879">@dlehman1</a>&nbsp;instructions, I get this for the requested quantiles 25%, 50%, and 75% after fitting a SHASH distribution:</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CI for Fitted Quantiles.png" style="width: 545px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/99532i037E558E54E26894/image-size/large?v=v2&amp;px=999" role="button" title="CI for Fitted Quantiles.png" alt="CI for Fitted Quantiles.png" /></span></P> Tue, 14 Apr 2026 15:48:18 GMT https://community.jmp.com/t5/Discussions/how-to-get-Confidence-Intervals-of-Quantiles-of-non-normal/m-p/941849#M109475 Mark_Bailey 2026-04-14T15:48:18Z