قارن الطرق

	نموذج العائق لبيانات العد	الانحدار اللوجستي	انحدار ذي الحدين السلبي
المجال	الإحصاء	إحصاء البحث	الاقتصاد القياسي
العائلة	Regression model	Process / pipeline	Regression model
سنة النشأة	1986	1958	2011
صاحب الطريقة	Mullahy	David Roxbee Cox	Hilbe (textbook treatment); generalized linear model framework
النوع	Two-part count model	Method	Generalized linear model for count data
المصدر التأسيسي	Mullahy, J. (1986). Specification and Testing of Some Modified Count Data Models. Journal of Econometrics, 33(3), 341–365.	Cox, D. R. (1958). The regression analysis of binary sequences. Journal of the Royal Statistical Society, Series B, 20(2), 215–242.	Hilbe, J. M. (2011). Negative Binomial Regression (2nd ed.). Cambridge University Press.
الأسماء البديلة	hurdle count model, two-part count model, zero-truncated count model, Engel Modeli (Hurdle Model)	logit model, binomial logistic regression, LR	NB regression, NB2 regression, negatif binom regresyonu
ذات صلة	5	3	4
الملخص	The hurdle model is a two-part count-data model introduced by Mullahy (1986). A first stage models the binary choice of crossing a hurdle (a zero versus a non-zero count), and a second stage models the strictly positive counts with a zero-truncated distribution such as a zero-truncated Poisson or negative binomial.	Logistic regression is a statistical method for modeling the probability of a binary outcome (disease present/absent, success/failure) as a function of continuous and categorical predictors. Developed by David Roxbee Cox (1958), it solves the problem of predicting categorical outcomes by applying a logistic transformation to constrain predictions to the [0,1] probability interval, enabling accurate risk stratification, diagnostic prediction, and causal inference in epidemiology, medicine, and social science.	Negative Binomial Regression is a generalized linear model for count outcomes that extends Poisson regression to handle overdispersion, where the variance of the counts exceeds their mean. Developed in the GLM tradition and treated in depth by Hilbe (2011), it adds a dispersion parameter so that inference stays valid when Poisson would understate the spread of the data.