X-ray attenuation of bone, soft and adipose tissue in CT from 70 to 140 kV and comparison with 3D printable additive manufacturing materials | Scientific Reports
An Aligned Rank Transform Procedure for Multifactor Contrast Tests
Environmental factors shaping the gut microbiome in a Dutch population | Nature
Contrast sensitivity and higher-order aberrations in Keratoconus subjects | Scientific Reports
How to Fix in R: Contrasts can be applied only to factors with 2 or more levels. - GeeksforGeeks
Insect visual sensitivity to long wavelengths enhances colour contrast of insects against vegetation | Scientific Reports
Factors influencing terrestriality in primates of the Americas and Madagascar | PNAS
What Environmental Factors Influence the Concentration of Fecal Indicator Bacteria in Groundwater? Insights from Explanatory Modeling in Uganda and Bangladesh | Environmental Science & Technology
Mixed ANOVA in R: The Ultimate Guide - Datanovia
General Linear Model
How to Fix in R: Contrasts can be applied only to factors with 2 or more levels. - GeeksforGeeks
The Transition from Metal-Based to Metal-Free Contrast Agents for T1 Magnetic Resonance Imaging Enhancement | Bioconjugate Chemistry
Learn - Model tuning via grid search
Contrast trees and distribution boosting | PNAS
![logistic regression - error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow](https://i.stack.imgur.com/dGVk0.png "logistic regression - error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow")
logistic regression - error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow
General Linear Model
A Two-Factor Explanation of Assimilation and Contrast Effects
How to Fix in R: Contrasts can be applied only to factors with 2 or more levels. - GeeksforGeeks
Factor Analysis with Python — DataSklr
Common Beliefs and Reality About PLS: Comments on Rönkkö and Evermann (2013) - Jörg Henseler, Theo K. Dijkstra, Marko Sarstedt, Christian M. Ringle, Adamantios Diamantopoulos, Detmar W. Straub, David J. Ketchen, Joseph
Image luminance changes contrast sensitivity in visual cortex - ScienceDirect
How to capitalize on a priori contrasts in linear (mixed) models: A tutorial - ScienceDirect
R Error: contrasts can be applied only to factors with 2 or more levels
Exercise under heat stress: thermoregulation, hydration, performance implications, and mitigation strategies | Physiological Reviews
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