All models are wrong, but some are useful and its application to e-learning

In a section with the heading “ALL MODELS ARE WRONG BUT SOME ARE USEFUL”, Box (1979) wrote Now it would be very remarkable if any system existing in the real world could be exactly represented by any simple model. (p. 202) Over recent weeks I’ve been increasingly interested in the application of this aphorism to

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Refining a visualisation

Time to refine the visualisation of students by postcodes started earlier this week. Have another set of data to work with. Remove the identifying data. Clean the data. I had to remind myself the options for the sort comment – losing it. The following provide some idea of the mess. [code lang=”sh”][/code] :1,$s/”* Sport,Health&PE+Secondry.*”/HPE_Secondary/ :1,$s/”*

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