[WP-34S] Chi-Square Distribution
01-14-2014, 02:33 PM
Post: #15
 Dieter Senior Member Posts: 2,397 Joined: Dec 2013
RE: [WP-34S] Chi-Square Distribution
(01-13-2014 01:08 AM)Paul Dale Wrote:  Think I found the problem. The normal quantile estimate wasn't dealing with small input probabilities properly. I don't know if this fix breaks anything else
The Normal estimate is crucial not only for the Normal quantile. A problem with small probabilities would cause inaccurate results with the Normal quantile as well - which I have not noticed yet.

The Normal estimate distinguishes between two cases: 0,5 >= p > 0,23 and p < 0,23. So an error with small probabilities would affect every p < 0,23. That's why I wonder what exactly the problem was. Could you post the Normal estimate code before and after your last correction?

Dieter
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 Messages In This Thread [WP-34S] Chi-Square Distribution - Sanjeev Visvanatha - 01-11-2014, 01:37 PM RE: [WP-34S] Chi-Square Distribution - walter b - 01-11-2014, 03:02 PM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-11-2014, 06:18 PM RE: [WP-34S] Chi-Square Distribution - Sanjeev Visvanatha - 01-12-2014, 03:16 PM RE: [WP-34S] Chi-Square Distribution - Sanjeev Visvanatha - 01-12-2014, 03:13 PM RE: [WP-34S] Chi-Square Distribution - walter b - 01-12-2014, 05:57 PM RE: [WP-34S] Chi-Square Distribution - Sanjeev Visvanatha - 01-12-2014, 07:23 PM The sheet (was: RE: [WP-34S] Chi-Square Distribution) - walter b - 01-13-2014, 07:55 PM RE: [WP-34S] Chi-Square Distribution - Sanjeev Visvanatha - 01-14-2014, 03:04 AM RE: [WP-34S] Chi-Square Distribution - Paul Dale - 01-11-2014, 11:11 PM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-12-2014, 02:37 PM RE: [WP-34S] Chi-Square Distribution - Paul Dale - 01-12-2014, 09:38 PM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-12-2014, 10:21 PM RE: [WP-34S] Chi-Square Distribution - Paul Dale - 01-13-2014, 01:08 AM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-14-2014 02:33 PM RE: [WP-34S] Chi-Square Distribution - walter b - 01-14-2014, 02:46 PM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-14-2014, 03:11 PM RE: [WP-34S] Chi-Square Distribution - Paul Dale - 01-14-2014, 10:07 PM RE: [WP-34S] Chi-Square Distribution - Dieter - 01-14-2014, 11:05 PM RE: [WP-34S] Chi-Square Distribution - Paul Dale - 01-16-2014, 01:41 AM

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