Sample Size

Along with aggregated Metrics, StreetLight InSight also provides information on the sample size of devices or connected vehicles used in your Project. These sample size estimates are calculated differently for our different data sources:

  • For Navigation-GPS data: Sample size indicates the number of total approximate unique vehicle trips in the StreetLight Data database analyzed for the Project and over its entire Data Period. A trip is only counted in the sample size if it meets all of the parameters defined both in the Project Options and the Zone Set structure (i.e.: for Pass-Through Zones, only trips that pass through those Zones are included).
  • For Location-Based Services data: Sample size indicates the number of total approximate unique device trips in the StreetLight Data database analyzed for the Project and over its entire Data Period. A trip is only counted in the sample size if it meets all of the parameters defined both in the Project Options and the Zone Set structure (i.e.: for Pass-Through Zones, only trips that pass through those Zones are included).

The sample size can be found in your downloads. Learn more about locating your sample size. 

Note:

  • Data months from January 2019 and for our LBS with Pass-through data source have more data. This additional data comes from new apps and providers added to source data and means approximately double the sample size for projects compared to our previous month, and quadruple the sample size compared to January 2018. Learn more about our increase. 
  • For privacy reasons, we will not show a sample size for Projects that have a sample size of <1000. If your .csv looks like the image pictured below, you will most likely have a sample size below 1000. 

Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request

Comments

0 comments

Article is closed for comments.