DOC: Modify generator example to use single calculation transform
@@ -10,8 +10,7 @@ import altair as alt
source = alt.sequence(start=0, stop=12.7, step=0.1, as_='x')
alt.Chart(source).mark_line().transform_calculate(
- sin='sin(datum.x)'
-).transform_calculate(
+ sin='sin(datum.x)',
cos='cos(datum.x)'
).transform_fold(
['sin', 'cos']
