# Warm Up: Predict Blood Donations

**URL:** https://community.drivendata.org/c/warm-up-predict-blood-donations/7.md?page=1

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## [Data Dictionary?](https://community.drivendata.org/t/data-dictionary/589)

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**Author:** [@cj87holler](https://community.drivendata.org/u/cj87holler)\
**Replies:** 1\
**Last updated:** [May 3, 2016, 1:43am UTC](https://community.drivendata.org/t/data-dictionary/589 "2016-05-03T01:43:26Z")

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Hey all, is there a Data Dictionary for the dataset? Thanks

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## [Testing Goodness of Fit of the Model](https://community.drivendata.org/t/testing-goodness-of-fit-of-the-model/530)

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**Author:** [@dkderden](https://community.drivendata.org/u/dkderden)\
**Replies:** 1\
**Last updated:** [April 11, 2016, 7:58pm UTC](https://community.drivendata.org/t/testing-goodness-of-fit-of-the-model/530 "2016-04-11T19:58:11Z")

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Since we are doing logistic regression, I was wondering what you think the best test for "Goodness of Fit" you think is the best with your models.

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## [Looking for other blood donation dataset](https://community.drivendata.org/t/looking-for-other-blood-donation-dataset/218)

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**Author:** [@AlexPerrier](https://community.drivendata.org/u/AlexPerrier)\
**Replies:** 0\
**Last updated:** [August 11, 2015, 1:12am UTC](https://community.drivendata.org/t/looking-for-other-blood-donation-dataset/218 "2015-08-11T01:12:00Z")

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I became curious on the subject of blood donation and using machine learning to predict users donation. Googled around and found many articles on the subject. The dataset mostly cited is the one used by this competition.…

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## [Dtype error in submission](https://community.drivendata.org/t/dtype-error-in-submission/67)

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**Author:** [@rishabh\_shukla](https://community.drivendata.org/u/rishabh_shukla)\
**Replies:** 1\
**Last updated:** [February 18, 2015, 1:25pm UTC](https://community.drivendata.org/t/dtype-error-in-submission/67 "2015-02-18T13:25:42Z")

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I am continuously getting a data type error in my submission. I am working with R and exporting a csv file as submission. This is the error I am getting: Unexpected data types in submission. Expected dtypes: '\[dty…

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