Predictive Model of Humidity in Greenhouses through Fuzzy Inference Systems Applying Optimization Methods

Table 2

Pearson’s correlation matrix of the variables in the greenhouse.

Variable	act_fan	act_heating	act_solenoid_valve	co2_ppm	ground_humidity_per	hum	light_Intensity	Luminosity	temp
act_fan	1.000	−0.075	0.013	−0.179	−0.124	−0.212	0.092	0.116	0.028
act_heating	−0.075	1.000	−0.019	0.184	0.067	−0.143	−0.114	−0.155	−0.074
act_solenoid_valve	0.013	−0.019	1.000	0.374	0.037	0.047	0.031	0.015	0.002
co2_ppm	−0.179	0.184	0.374	1.000	0.259	0.133	0.024	−0.060	−0.088
ground_humidity_per	−0.124	0.067	0.037	0.259	1.000	0.115	0.230	−0.029	0.244
hum	−0.212	−0.143	0.047	0.133	0.115	1.000	−0.060	−0.245	−0.596
light_Intensity	0.092	−0.114	0.031	0.024	0.230	−0.060	1.000	0.850	0.390
Luminosity	0.116	−0.155	0.015	−0.060	−0.029	−0.245	0.850	1.000	0.448
temp	0.028	−0.074	0.002	−0.088	0.244	−0.596	0.390	0.448	1.000