نتایج جستجو برای: left truncation

تعداد نتایج: 304685  

Journal: :Journal of Statistical Software 2021

The dynamichazard package implements state space models that can provide a computationally efficient way to model time-varying parameters in survival analysis. I cover the and some of estimation methods implemented dynamichazard, apply them large data set, perform simulation study illustrate methods' computation time performance. One is compared with other R which allow for left-truncation, rig...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Houbi Nguyen Marcus Jager Alessandro Moretto Martin Gruebele Jeffery W Kelly

The equilibrium unfolding of the Formin binding protein 28 (FBP) WW domain, a stable three-stranded beta-sheet protein, can be described as reversible apparent two-state folding. Kinetics studied by laser temperature jump reveal a third state at temperatures below the midpoint of unfolding. The FBP free-energy surface can be tuned between three-state and two-state kinetics by changing the tempe...

2006
Damien Rohmer Robert L. Eisner Grant T. Gullberg

Background: The limited transaxial field-of-view (FOV) of a very small cardiac SPECT camera system causes view-dependent truncation of the projection of structures exterior to, but near the heart. Basic tomographic principles suggest that the reconstruction of non-attenuated truncated data gives a distortion-free image in the interior of the truncated region, but the DC term of the Fourier spec...

2008
Sundarraman Subramanian Dipankar Bandyopadhyay

We analyze an augmented inverse probability of non-missingness weighted estimator of a survival function for a missing censoring indicator model, in the absence and presence of left truncation. The estimator improves upon its precursor but is still not the best in terms of achieving minimal asymptotic variance.

Journal: :Public Choice 2022

A voting rule that permits some voters to favor a candidate by revealing only the initial segment of their sincere rankings is said be vulnerable truncation paradox. In this paper, we consider four models for counting truncated ballots, optimistic, pessimistic (the most common), averaged, and round-down. Under impartial anonymous culture assumption, choice model generally has real impact on tru...

Journal: :Annali di Ca' Foscari. Serie occidentale 2022

In this article, we will show that the modal properties of infinitive relative clauses are a direct consequence their defective functional periphery, namely they just project FinP in case prepositional relatives, but up to ForceP wh- relatives. While truncation analysis helps us explain special it offers new insights into standard situ focus as covert movement FocP and right-dislocation left-di...

Journal: :Communications for Statistical Applications and Methods 2014

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