Dear all，
Currently, I attempted to compare spatial aggregation of species across latitude. I plan to use pcf.ppp() function in ‘spatstat’ package. I also have a question about the parameter ‘bandwidth’ in pcf function.In pcf.ppp() function, the argument bw (bandwidth) is a default value, using Epanechnikov kernel with support [−h, h] chosen by the rule of thumb h = c/sqrt(λ), bw=h/sqrt(5) is related to lambda which varies with species abundance. This may affect the comparison of spatial aggregation of species with different abundance.So my question is, should I choose h as a constant (e.g., h=30 m, Wiegand, 2007) or use the default method in pcf.ppp() function?Best regards, Bei Yao 		 	   		  
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