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Repository for (for now) filing bug reports about DCIC.
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[DCIC Book]: Definition of is-winter table predicate inconsistent with later text #28

Closed graememcc closed 2 years ago

graememcc commented 2 years ago

Contact Details

dcic-bugreport@graeme-online.co.uk

Which Web page has the problem?

https://dcic-world.org/2022-01-25/intro-tabular-data.html#%28part._.Functions_over_.Rows%29

What's the problem?

Section 7.2 introduces the shuttle table, with rows for Jan, Feb, Mar and Apr.

The first exercise in section 7.3 asks the student to define an is-winter predicate to return true for rows with a month of Jan, Feb or Mar. By this definition, all but the Apr row in shuttle would match - three rows.

The final paragraph in 7.4.1, and the example sorting output early in section 7.4.2 imply that filtering shuttle on is-winter would return only two rows - looks like it is using a definition where Mar is excluded.

What browser are you seeing the problem on?

Firefox

kfisler commented 2 years ago

Fixed (and thanks for the careful read!). It will appear in a release later this weekend.