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| | |Judea Pearl度量 | | |Judea Pearl度量 |
| − | |<math>\mathrm{PNS}=P(e\mid c)-P(e\mid C\backslash c)</math>, | + | |<math>\mathrm{PNS}=P(e\mid c)-P(e\mid C\backslash c)</math> |
| − | | + | <math>\mathrm{PN}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{P(e\mid c)}</math> |
| − | <math>\mathrm{PN}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{P(e\mid c)}</math>, | |
| − | | |
| | <math>\mathrm{PS}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{1-P(e\mid C\backslash c)}</math> | | <math>\mathrm{PS}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{1-P(e\mid C\backslash c)}</math> |
| − | |<math>\mathrm{PNS}=P(e\mid c)-P(e\mid C\backslash c)=suff(e,c)+nec(e,c)-1</math>, | + | |<math>\mathrm{PNS}=suff(e,c)+nec(e,c)-1</math> |
| − | <math>\mathrm{PN}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{P(e\mid c)}=\frac{suff(e,c)+nec(e,c)-1}{suff(e,c)}</math>, | + | <math>\mathrm{PN}==\frac{suff(e,c)+nec(e,c)-1}{suff(e,c)}</math> |
| − | | + | <math>\mathrm{PS}==\frac{suff(e,c)+nec(e,c)-1}{nec(e,c)}</math> |
| − | <math>\mathrm{PS}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{1-P(e\mid C\backslash c)}=\frac{suff(e,c)+nec(e,c)-1}{nec(e,c)}</math> | |
| | |<ref name="pearl_causality" /><ref>Lewis, D. (1973). Causation. ''The journal of philosophy'', ''70''(17), 556-567.</ref> | | |<ref name="pearl_causality" /><ref>Lewis, D. (1973). Causation. ''The journal of philosophy'', ''70''(17), 556-567.</ref> |
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