Inspect Components

Get All Components

Both EMPR and HDMR expose component terms through components().

import numpy as np
from hdmrlib import EMPR

X = np.random.rand(10, 10)

empr = EMPR(X, order=2)
components = empr.components()

components is a dictionary of component terms.

Inspect Available Keys

print(components.keys())

Component names follow the library’s internal naming convention:

  • g_1

  • g_2

  • g_1,2

The indices are one-based.

For a two-dimensional input, g_1 and g_2 are first-order terms, and g_1,2 is the second-order interaction term.

Select Specific Components

Use elements to request only specific component keys.

selected = empr.components(elements=["g_1", "g_2", "g_1,2"])

elements must match the available component names exactly.

HDMR

The same pattern applies to HDMR.

from hdmrlib import HDMR

hdmr = HDMR(X, order=2)
components = hdmr.components()
selected = hdmr.components(elements=["g_1", "g_2", "g_1,2"])

Notes

  • components() returns the stored component dictionary

  • component keys use one-based indexing

  • selected keys must exist in the component dictionary