The spatial distribution of traditional intangible cultural heritage medicine of China and its influencing factors

Heritage Science

Table 2 The nearest neighbor index of national traditional medicine practices of China

Batch	NNObserved/m	NNExpected/m	ANN(R)	Z	P^a
1	2.476	2.349	1.054	0.374	0.709
2	0.832	1.767	0.471	− 6.404	0.000
3	1.652	2.598	0.636	− 4.180	0.000
4	1.739	2.215	0.785	−2.847	0.004
5	1.761	2.137	0.824	−2.261	0.024

^aP-value (Probability, Pr) represents probability. It reflects the likelihood of an event occurring. In spatial correlation analysis, the P-value indicates the probability that the observed spatial pattern is created by a random process. That is, assuming that the data at hand is randomly generated and has no pattern, this random process is considered as the null hypothesis