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datacarpentry / spreadsheet-ecology-lesson

Data Organization in Spreadsheets for Ecologists
https://datacarpentry.org/spreadsheet-ecology-lesson
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Not filling in zeros - learner may not know what a "null value" is #105

Closed ErinBecker closed 7 years ago

ErinBecker commented 7 years ago

The text in this section says that a computer will interpret missing data as a "null value", but many learners may not know what this means in practical terms. Good to add a sentence here stating something to the effect that computers don't know how to do calculations with null data, so, for example, trying to calculate the average of a column with null values will result in a null.

ErinBecker commented 7 years ago

Working on this!

ErinBecker commented 7 years ago

Closed with https://github.com/datacarpentry/spreadsheet-ecology-lesson/pull/144