File:Chi-square median approx.png
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Captions
Captions
Chi-squared distribution median and approximation based on Wilson-Hilferty transformation
Summary
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| Description |
English: This replacement for the en.wikipedia's non-free and not-very-good plot File:Chi on SAS.png (from this blog) shows the numerically computed median of the chi-squared distribution, and the approximation from the Wilson–Hilferty transformation, at integer degrees of freedom (circles) and also as a continuous function that could be transformed to represent the median of the gamma distribution. The median and approximation are too close to see a difference, so their difference (absolute error) is also plotted, and also the relative error, which is difference (median - approx) divided by the true median. For degrees of freedom less than 2/9, the approximation goes negative, so the curves are cut off at that point. |
| Date | |
| Source | Own work |
| Author | Dicklyon |
Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:27, 26 November 2020 | | 1,256 × 1,090 (124 KB) | Dicklyon (talk | contribs) | heavier lines, larger circles |
| 06:05, 26 November 2020 |  | 1,250 × 1,094 (115 KB) | Dicklyon (talk | contribs) | Uploaded own work with UploadWizard |
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File usage on other wikis
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- Usage on en.wikipedia.org
- Usage on sq.wikipedia.org
