according google's analytics.js documentation, if have single test want run on page, straightforward method first, load experiments script experiment id specified:
<script src="//www.google-analytics.com/cx/api.js?experiment=ybymkfprrcstcmvk8zh1yw"></script> next, let google pick variation you:
<script> var variation = cxapi.choosevariation(); </script> but case have multiple tests on single page? perhaps have site-wide navigation test individual test on single page? when visiting page, there 2 potential tests run.
google says can load api without experiment id:
<script src="//www.google-analytics.com/cx/api.js"></script> and can manually choose variation particular experiment id:
var variation = cxapi.setchosenvariation(3, "ybymkfprrcstcmvk8zh1yw");okay seems make sense. suppose setup random number generator (pick random number between 1-3) in order determine variation set visitor. not possible programmatically determine number of variations in test? seems important information able query if determining method setting variation.
it doesn't appear can pass experiment id choosevariation() either, or else work.
