Options

When applying PCA to binary data, use dummy coding?

wesselwessel Member Posts: 537 Maven
edited November 2018 in Help
Dear All,

When applying PCA to binary data, should we use dummy coding?
Or should we use difference coding?

dummy coding: false = 0, true 1
difference coding: false = -1, true = +1

Best regards,

Wessel
Sign In or Register to comment.