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Examining the new cognostics

Investigate the output of the plot you just created (now with all countries and with as_plotly = TRUE) and interact with the cognostics to answer the question: Which country has the poorest linear model fit according to the fraction of variance explained by the model? Note that this quantity is known as "R-squared", and that cognostics associated with the linear model fit begin with _lm.

This exercise is part of the course

Visualizing Big Data with Trelliscope in R

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