Table 2:

Results of general linear model (GLM) analysis describing the factors that influence the attenuation of Wi-Fi signal, noise, and signal-to-noise ratio (SNR).

Factors tested (coefficients for the factors retained in final model)
InterceptDistance to AP (m)Tree countTree size (S,M,L)Canopy depth (m)Broadleaf or coniferIn-leaf or depth (m)Leaf area (cm2)Leaf dim ratio
MetricModel r2
ΔSNR−7.836− 4.77x0.123w−4.89x0.620.58
ΔSignal−1.308− 4.40x0.124w−4.37x0.640.55
  • z“Full model”: includes all variables.

  • y“Final model”: includes only the variables that were retained by the stepwise procedure.

  • xP < 0.001

  • w0.001 < P < 0.05