Yoast/google-analytics-for-wordpress — pull request #68 by desrosj (2014-09-05 18:58:41+00:00)
Title: Preventing a ton of Undefined Index notices from appearing.

Self explanatory pull. Noticed you had isset checks in other conditionals in the same function, so followed the pattern. Maybe in the future, populate the $options variable with default values with wp_parse_args?