Dose Correlation of Danggui and Chuanxiong Drug Pairs in the Chinese Medicine Prescription Based on the Copula Function

Figure 2

Empirical distribution function and kernel distribution estimation of drug-dose data. Note: the blue solid line represents the empirical distribution function; the black dotted line represents the kernel distribution estimation function; (a, c, and f) empirical distribution function and kernel distribution estimation of Chuanxiong; (b, d, and g) empirical distribution function and kernel distribution estimation of Danggui. (a) Chuanxiong (treatment of irregular menstruation). (b) Danggui (treatment of irregular menstruation). (c) Chuanxiong (treatment of sores). (d) Danggui (treatment of sores). (e) Chuanxiong (treatment of stroke). (f) Danggui (treatment of stroke).

(a)

(b)

(c)

(d)

(e)

(f)