verticapy.machine_learning.memmodel.decomposition.PCA.rotate#
- PCA.rotate(gamma: float = 1.0, q: int = 20, tol: float = 1e-06) None #
Performs an Oblimin (Varimax, Quartimax) rotation on the
PCA
matrix.Parameters#
- gamma: float, optional
Oblimin rotation factor, determines the type of rotation. It must be between
0.0
and1.0
.gamma = 0.0
results ina Quartimax rotation.
gamma = 1.0
results ina Varimax rotation.
- q: int, optional
Maximum number of iterations.
- tol: float, optional
The algorithm stops when the Frobenius norm of gradient is less than
tol
.
Examples#
Import the required module.
from verticapy.machine_learning.memmodel.decomposition import PCA
We will use the following attributes:
principal_components = [ [0.4, 0.5], [0.3, 0.2], ] mean = [0.1, 0.3]
Let’s create a model.
model_pca = PCA(principal_components, mean)
Create a dataset.
data = [[4, 5]]
Let’s use the following column names:
cnames = ['col1', 'col2']
Rotate the matrix.
model_pca.rotate()
Note
Refer to
PCA
for more information about the different methods and usages.