EducationalTestingService / EducationalTestingService/factor_analyzer

get_factor_variance() returns ndarray which is not ordered by variance.

Abierto
#132 0 comentarios 0 reacciones 0 asignados Ver en GitHub
Lenguaje dominante
Python
Estrellas
6
Forks
1
Métricas de merge de PR
Sin PR fusionados en 30 d

Descripción

When i print the variance of the factors with get_factor_variance(), the variance is not monotonically decreasing. In my understanding each additional factor should explain less and less variance. The variance of my 15 factors looks like this (notice the values marked in bold):
[12.69, 5.32, 2.7, 2.6, 2.26, 2.08, 1.76, **2.54**, **2.4**, 1.69, 1.49, **2.06**, 1.16, 1.15, **1.45**]

````
n_factors = 15
fa = FactorAnalyzer(n_factors, rotation="varimax", method='principal', use_smc=True)
fa.fit(X)
print(pd.DataFrame(fa.get_factor_variance(),index=['Variance (sum of squared loadings)','Proportional Var','Cumulative Var']))
````
I cannot provide you with the data X

Expected behavior: the output should be sorted by decreasing variance

- OS: macOS
- Python: 3.11
- Versions for `factor_analyzer` / `numpy` / `scipy` / `pandas`: newest

Guía de contribución

No hay ninguna guía de contribución indexada para este repositorio

Evaluación

Este issue todavía no se ha evaluado.

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.