Styling a line vector according to an attribute value (eg. here ac_average) is not working. E.g:
The m for meter seems to cause problems, as it works without the m and just 1000m (no expression) also works. What am I missing? The documentation explains that this should work: "When using expressions in place of numeric values, the first unit listed for the type of measure is assumed."
In the meantime Andrea provides the following workaround work around:
Tested against topp:states seems to work.