Estimation and variable selection in partial linear single index models with error-prone linear covariates
Estimation and variable selection in partial linear single index models with error-prone linear covariates
复制标题
具有易错线性协变量的部分线性单指标模型中的估计和变量选择
DOI:
10.1080/02331888.2013.800519
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发表时间:
2014-09
期刊:
影响因子:
--
通讯作者:
张君
中科院分区:
文献类型:
--
作者:
张君
We study the estimation and variable selection for a partial linear single index model (PLSIM) when some linear covariates are not observed, but their ancillary variables are available. We use the semiparametric profile least-square based estimation procedure to estimate the parameters in the PLSIM after the calibrated error-prone covariates are obtained. Asymptotic normality for the estimators are established. We also employ the smoothly clipped absolute deviation (SCAD) penalty to select the relevant variables in the PLSIM. The resulting SCAD estimators are shown to be asymptotically normal and have the oracle property. Performance of our estimation procedure is illustrated through numerous simulations. The approach is further applied to a real data example.
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