## Electronic Journal of Statistics

### Maximum likelihood estimation in logistic regression models with a diverging number of covariates

#### Abstract

Binary data with high-dimensional covariates have become more and more common in many disciplines. In this paper we consider the maximum likelihood estimation for logistic regression models with a diverging number of covariates. Under mild conditions we establish the asymptotic normality of the maximum likelihood estimate when the number of covariates $p$ goes to infinity with the sample size $n$ in the order of $p=o(n)$. This remarkably improves the existing results that can only allow $p$ growing in an order of $o(n^{\alpha})$ with $\alpha\in[1/5,1/2]$ [12, 14]. A major innovation in our proof is the use of the injective function.

#### Article information

Source
Electron. J. Statist., Volume 6 (2012), 1838-1846.

Dates
First available in Project Euclid: 4 October 2012

https://projecteuclid.org/euclid.ejs/1349355604

Digital Object Identifier
doi:10.1214/12-EJS731

Mathematical Reviews number (MathSciNet)
MR2988466

Zentralblatt MATH identifier
1295.62021

Subjects
Primary: 62F12: Asymptotic properties of estimators
Secondary: 62J12: Generalized linear models

#### Citation

Liang, Hua; Du, Pang. Maximum likelihood estimation in logistic regression models with a diverging number of covariates. Electron. J. Statist. 6 (2012), 1838--1846. doi:10.1214/12-EJS731. https://projecteuclid.org/euclid.ejs/1349355604

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