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tests:astropars:challenge3 [2014/10/31 10:59] – [GSP-Phot vs. SICK] randraetests:astropars:challenge3 [2022/10/24 12:26] (current) – external edit 127.0.0.1
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   * Teff from 4000K to 8000K.   * Teff from 4000K to 8000K.
   * Test spectra created by GOG. (Not by our own forward models!)   * Test spectra created by GOG. (Not by our own forward models!)
 +
 +== Examples of posterior samples ==
 +
 +  * Posterior distributions mostly well behaved for BP/RP, i.e., fast convergence, unimodal.
 +  * Even in simple case the posteriors cannot be well approximated by a Gaussian.
 +  * Rare examples with multimodal posterior.
 +
 +{{:tests:example-MCMC-unimodal.png|}}
 +
 +{{:tests:example-MCMC-multimodal.png|}}
  
 == Results for fitting BP/RP alone == == Results for fitting BP/RP alone ==
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 +== Future tests ==
  
 +  * Compare initial guesses of GSP-Phot and SICK. (Possibly SVM fails for noisy data, which may explain why SICK estimates [Fe/H] better at faint magnitudes.)
  
  
tests/astropars/challenge3.1414753147.txt.gz · Last modified: 2022/10/24 12:26 (external edit)