Illuminant C is a standard illuminant defined by the CIE that represents average daylight with a correlated color temperature of approximately 6774K, used primarily in colorimetry to simulate natural daylight conditions. It is less commonly used today, having been largely replaced by Illuminant D series, which more accurately represents natural daylight spectral power distributions.
Factor Analysis is a statistical method used to identify underlying relationships between variables by reducing the number of observed variables into a smaller number of latent factors. It helps in understanding the structure of data, simplifying datasets, and is widely used in fields like psychology, finance, and social sciences to uncover hidden patterns and dimensions.
The Capital Asset Pricing Model (CAPM) is a financial model that describes the relationship between systematic risk and expected return for assets, particularly stocks. It is used to estimate an investment's expected return based on its beta, the risk-free rate, and the expected market return, providing a framework for assessing the trade-off between risk and return.