Compara mètodes

	Anàlisi de Classes Latents (LCA)	Anàlisi discriminant
Camp	Estadística	Estadística
Família	Latent structure	Latent structure
Any d'origen	1950s–1968	1936
Autor original	Paul F. Lazarsfeld	Ronald A. Fisher
Tipus	Latent variable / person-centered classification	Supervised classification and dimension reduction
Font seminal	Goodman, L. A. (1974). Exploratory latent structure analysis using both identifiable and unidentifiable models. Biometrika, 61(2), 215–231.	Fisher, R. A. (1936). The use of multiple measurements in taxonomic problems. Annals of Eugenics, 7(2), 179–188.
Àlies	LCA, latent class model, latent categorical analysis, finite mixture of multinomials	LDA, Fisher discriminant analysis, discriminant function analysis, canonical discriminant analysis
Relacionats	6	4
Resum	Latent class analysis identifies unobserved subgroups — latent classes — within a population by finding patterns of responses across a set of categorical observed indicators. It is the categorical-variable counterpart of cluster analysis, but grounded in an explicit probabilistic model, and is widely used in social, health, and behavioral sciences to discover typologies in survey or diagnostic data.	Discriminant analysis finds linear combinations of predictor variables that best separate two or more known groups. It is used both to understand which predictors distinguish the groups and to classify new observations into those groups with minimum error.