As part of my question to merge astrology with personality types, the ancient concept of temperament is something I continue to study. Temperament is innate whereas personality is both innate and influenced by other factors such as environment.
The four temperament types are choleric, melancholic, phlegmatic, and sanguine.
AFAN (Association For Astrological Networking) recently had a webinar with astrologer Debbie Stapleton. She shared a formula for calculating temperament that she learned from astrology Lee Lehman. I put the formula into a spreadsheet that you are welcome to use. It is read-only so you will need to copy and paste it into your own spreadsheet to make your own entries.
If you have any questions, please email me or message me on Instagram. I also created a YouTube video that gives a demo of using the spreadsheet. I’ll have some more posts in the future about blending temperament and personality type.