Spatial Patterns of Beach Litter in Latvia: Evidence from Monitoring Site Data

Podstawowe statystyki opisowe

category	n_sites	total	mean	median	sd	min	max	pct_zero
Cigarette butts	44	4783	108.705	67.5	114.616	2	514	0.000
Plastic ropes	44	588	13.364	8.5	14.533	1	70	0.000
Styrofoam and polystyrene	44	506	11.500	6.0	16.806	0	103	2.273
Plastic bags	44	450	10.227	7.0	9.348	0	36	6.818
Plastic bottle caps	44	351	7.977	4.0	11.851	0	66	13.636
SUP dishes and cutlery	44	170	3.864	3.0	4.044	0	19	11.364
Beverage containers	44	66	1.500	1.0	1.772	0	7	38.636

## 
##  Clark-Evans test
##  No edge correction
##  Z-test
## 
## data:  sites_ce
## R = 0.35818, p-value = 1.771e-10
## alternative hypothesis: two-sided

HDBSCAN

category	n	n_noise	n_clustered	n_clusters	avg_prob
Beverage containers	44	4	40	2	0.413
Cigarette butts	44	4	40	2	0.413
Plastic bags	44	4	40	2	0.413
Plastic bottle caps	44	4	40	2	0.413
Plastic ropes	44	4	40	2	0.413
SUP dishes and cutlery	44	4	40	2	0.413
Styrofoam and polystyrene	44	4	40	2	0.413

Moran’s I dla Y (kNN k=4)

category	n	moran_I	p_value
Beverage containers	44	0.0546	0.2045
Cigarette butts	44	0.2633	0.0010
Plastic bags	44	0.2361	0.0032
Plastic bottle caps	44	0.0175	0.3027
Plastic ropes	44	-0.0020	0.4060
Styrofoam and polystyrene	44	0.0410	0.1792
SUP dishes and cutlery	44	-0.0359	0.5546

Diagnostyka modeli (Cigarette butts)

model	AIC	moran_I	p_value
SLX	79.3925	-0.1937	0.9645
SEM	115.0887	-0.0061	0.4292
SAR	116.1212	0.0586	0.1970

Diagnostyka modeli (Plastic bags)

model	AIC	moran_I	p_value
SLX	104.9446	-0.2481	0.9901
SAR	114.6365	-0.0501	0.6098
SEM	116.3717	-0.0042	0.4217