Results 41 to 50 of about 29,891,370 (135)
The R Journal, 2017 Count data can be analyzed using generalized linear mixed models when observations are correlated in ways that require random effects. However, count data are often zero-inflated, containing more zeros than would be expected from the typical error ...
M. Brooks +8 more
semanticscholar +1 more source
VSURF: An R Package for Variable Selection Using Random Forests
The R Journal, 2015 This paper describes the R package VSURF. Based on random forests, and for both regression and classification problems, it returns two subsets of variables.
R. Genuer +2 more
semanticscholar +1 more source
The Conference Report of Why R? Turkey 2022: The First R Conference with Call For Papers in Turkey
, 2022 Why R? Turkey 2022 was a non-profit conference that aimed to bring Turkish R users together and encourage them to attend the R conferences. The targeted audience of the conference consisted of, data scientists, data analysts, and all R users from ...
Turfan, Derya +6 more
core
R&D ManagementDrawing on the structure–conduct–performance (SCP) paradigm, this study proposes and tests a framework of how government institutional stimulus can spur small‐ and medium‐sized enterprises' (SMEs) innovativeness.
A. Nwoba +5 more
semanticscholar +1 more source
Applying the Supporting Features for MOGAD Diagnosis to Patients With Multiple Sclerosis
Neurology(R) neuroimmunology & neuroinflammationBackground and Objectives In the 2023 diagnostic criteria, supporting clinical/MRI features are required to diagnose myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD) in patients at high risk of false MOG-IgG positivity (low ...
Pietro Zara +16 more
semanticscholar +1 more source
npcure: An R Package for Nonparametric Inference in Mixture Cure Models [PDF]
The R JournalMixture cure models have been widely used to analyze survival data with a cure fraction. They assume that a subgroup of the individuals under study will never experience the event (cured subjects).
A. López-Cheda +2 more
semanticscholar +1 more source
Terpenoids from Loxocalyx urticifolius
, 2012 Two new diterpenoids, loxocalyxin A (1) and 13-epiloxocalyxin A (2), and two new sesquiterpenoids, loxocalyxins B and C (3 and 4, resp.), together with three known compounds, were isolated from the MeOH extract of the whole plant of Loxocalyx ...
Xu, Xuemin +6 more
core
Neurology(R) neuroimmunology & neuroinflammationBackground and Objectives Differentiating multiple sclerosis (MS) from antibody (Ab)-defined diseases, such as neuromyelitis optica spectrum disorders (NMOSDs), remains challenging, particularly as Ab levels decline. N-glycans play a key role in immunity,
Tereza Kacerova +17 more
semanticscholar +1 more source
R&D ManagementExtant research has established that firms engage in R&D collaboration and access knowledge spillovers to enhance their innovativeness. We aim to take this conversation in a new direction by seeking to answer the question, ‘How does engagement in R&D ...
D. Audretsch, M. Belitski, Rosa Caiazza
semanticscholar +1 more source