From 518f37cfe2dbc112bdbd1660a9598f7372ee3c83 Mon Sep 17 00:00:00 2001 From: Arnaud Legrand Date: Mon, 24 Sep 2018 10:50:28 +0200 Subject: [PATCH] Testing math renderibg with markdown --- README.md | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..2cc25b9 --- /dev/null +++ b/README.md @@ -0,0 +1,35 @@ +In this project, we gather reproduction attempts from the Challenger +study. In particular, we try to reperform some of the analysis provided +in *Risk Analysis of the Space Shuttle: Pre-Challenger Prediction of +Failure* by *Siddhartha R. Dalal, Edward B. Fowlkes, Bruce Hoadley* +published in *Journal of the American Statistical Association*, Vol. 84, +No. 408 (Dec., 1989), pp. 945-957 and available at +[here](https://studies2.hec.fr/jahia/webdav/site/hec/shared/sites/czellarv/acces_anonyme/OringJASA_1989.pdf) +(here is [the official JASA +webpage](http://www.jstor.org/stable/2290069)). + +On the fourth page of this article, they indicate that the maximum +likelihood estimates of the logistic regression using only temperature +are: $`\hat{\alpha}=5.085`$ and $`\hat{\beta}=-0.1156`$ and their +asymptotic standard errors are $`s_{\hat{\alpha}}=3.052`$ and +$s_{\hat{\beta}}=0.047`$. The Goodness of fit indicated for this model +was $`G^{2}=18.086`$ with 21 degrees of freedom. Our goal is to +reproduce the computation behind these values and the Figure 4 of this +article, possibly in a nicer looking way. + +
+ +**[Here is our successful replication of Dalal et al. results using +R](challenger.pdf)**. + +
+ +1. Try to **replicate the computation** from Dalal et al. In case it + helps, we provide you with two implementations of this case study + but we encourage you to **reimplement them by yourself** using both + your favourite language and an other language you do not know yet. + - A [Jupyter Python3 notebook](src/Python3/challenger.ipynb) + - An [Rmarkdown document](src/R/challenger.Rmd) +2. Then **update the [meta-study result table available + here](results.org) with your own results**. + -- 2.18.1