Fig. 4: Spatial autocorrelation analysis of the pseudo-human settlements index (PHSI).
From: Realistic characteristics and driving mechanisms of pseudo-human settlements in Chinese cities
The upper and lower parts of the figure, respectively, show the spatial distribution map and scatter diagram of local spatial autocorrelation analysis of PHSI, where the High–High cluster implies that the PHSI of the city and surrounding cities is high (statistically significant) (located in the first quadrant of the scatter map); Low–High outlier means that the PHSI of the city is low while that of its surrounding cities is high (located in the second quadrant of the scatter diagram); Low–Low cluster means that the PHSI of the city and surrounding cities is low (located in the third quadrant of scatter diagram); High–Low outlier represents the PHSI of the city itself is high while that of its surrounding cities is low (located in the fourth quadrant of the scatter diagram). The map was developed by the authors using ArcGIS Pro Version 3.0.2, and the background map was issued by the Ministry of Natural Resources of the People’s Republic of China (drawing review No. GS (2020) 4619), as shown in the website: http://bzdt.ch.mnr.gov.cn/.
