Quiz: Concept of Data

Test yourself on data definition, types, licenses, cleaning, and enrichment.

We'll cover the following...
Technical Quiz
1.

Which code correctly represents the x channel as a string column?

A.

chart = alt.Chart(df ).mark_line( ).encode( x='x:Q' )

B.

chart = alt.Chart(df ).mark_line( ).encode( x='x:O' )

C.

chart = alt.Chart(df ).mark_line( ).encode( x='x:N' )


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