Editing Daylighting (architecture) (section)

===Illuminance distribution===
Besides determining how much illuminance is received on a horizontal surface, a method that analyses annual illuminance distributions for daylight has been developed.<ref>{{cite journal |last1=Kent |first1=Michael |last2=Schiavon |first2=Stefano |last3= Jakubiec |first3=Alstan |year=2020 |title=A dimensionality reduction method to select the most representative daylight illuminance distributions |journal=Journal of Building Performance Simulation |volume=13 |issue=1 |pages=122–135 |doi=10.1080/19401493.2019.1711456 |s2cid=211093664 |url=https://escholarship.org/uc/item/04x6v86j }}<!--|access-date=November 08, 2021--></ref> Every annual illuminance distribution is compared against each other using [[principal components analysis]]. This compares the relationship between each pattern. Daylight patterns that are more similar to each other due to architectural features and the time of the year the illuminance are produced are grouped together. Groups are used to form the most representative patterns for that given building. This method can be used to easily interpret how daylight is spread across the space throughout the entire year in any building.