Popular Question - Badge - Cross Validated

Popular Question

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Is it justified to include non-significant predictors in a model if it decreases the fit criterion (AIC)?

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Raoul

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Is it meaningful to test the interaction effect if there is no significant effect in the main effect model?

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zjppdozen

5632 silver badges6 bronze badges

Welch's t test vs Mann-Whitney for very unequal groups

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vladbadu

333 bronze badges

Power analysis for GAMM

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Shawn Hemelstrand

22k7 gold badges42 silver badges106 bronze badges

Why do model selection (AIC and LOO) outcomes differ between ML and bayesian approaches

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Dylan_Gomes

2782 silver badges15 bronze badges

How to compare log-loss across similar classification models with different baseline probabilities?

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abeboparebop

2271 silver badge11 bronze badges

Is there a method to look for significant difference between two linear regression lines

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climateresearcher567

211 gold badge1 silver badge2 bronze badges

Logistic regression assumptions and Box-Tidwell test

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Rafael Biondo

313 bronze badges

How to test the null hypothesis "p is not 0.5"?

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Erel Segal-Halevi

1,1892 gold badges8 silver badges24 bronze badges

Confidence region about a regression model

Awarded Feb 26 at 3:09

user16548

633 bronze badges

Is it legitimate to use AIC to compare models on the same data at different levels of aggregation?

Awarded Feb 26 at 1:23

J Kelly

5173 silver badges14 bronze badges

fitting a gam with constraints on parameters to deal with separation in parametric terms

Awarded Feb 25 at 22:36

chris

614 bronze badges

Can the label powerset method be used to predict probability for reach class?

Awarded Feb 25 at 17:18

Adam

1039 bronze badges

Visualizing predictions from GAM model with control values as a baseline?

Awarded Feb 25 at 12:23

Michał Walesiak

536 bronze badges

Why would random forest outperform a well tuned gradient boosted regression model?

Awarded Feb 25 at 3:05

Fulgrave

212 bronze badges

Scale the gamma distribution

Awarded Feb 25 at 0:13

ceins

578 bronze badges

How to retrieve standard errors from random effects in nlme?

Awarded Feb 24 at 20:47

Thomas

5285 silver badges19 bronze badges

What does the predict() method do in the lifeline package?

Awarded Feb 24 at 14:35

Kimia Gharib

234 bronze badges

Specify LMM in lme4 with two predictors but random intercepts for just one of both predictors

Awarded Feb 23 at 20:38

der

312 bronze badges

What is a good symmetrical loss function for relative errors

Awarded Feb 23 at 20:18

Zac

2803 silver badges12 bronze badges

What is a unit increase in logistic regression on standardized data?

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Marc Frei

233 bronze badges

Simple explanation of Takeuchi’s information criterion?

Awarded Feb 23 at 14:00

Carl

13.6k7 gold badges57 silver badges123 bronze badges

In cluster analysis, is it better to normalize the data or standardize it?

Awarded Feb 23 at 12:23

Nip

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What's the correct tool to compare means between very small groups?

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Kathrin

393 bronze badges

How to interpret DESeq results with LRT vs. with Wald's test

Awarded Feb 22 at 21:03

Luise Charlotte

112 bronze badges

Interpreting ZINB - inflation model non-significant

Awarded Feb 22 at 18:07

Fran Villamil

3212 gold badges4 silver badges11 bronze badges

Visualization of a mixed effect logistic regression model?

Awarded Feb 22 at 15:34

Katherine

3771 silver badge7 bronze badges

How to conduct inference on binomial proportions with small sample sizes?

Awarded Feb 22 at 4:07

user321627

4,3924 gold badges37 silver badges81 bronze badges

"De-meaning" or "Differencing the mean of..." in mathematical term

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Frank Swanton

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How do Bayesians verify their methods using Monte Carlo simulation methods?

Awarded Feb 20 at 20:17

Mark White

11.7k4 gold badges38 silver badges84 bronze badges

ROUGE-N for multiple references

Awarded Feb 20 at 20:07

Martin

214 bronze badges

Validity of ANCOVA for Linear Models with Different Slopes

Awarded Feb 20 at 17:02

Random Engineer

212 bronze badges

Testing the variance part of a Generalized Linear Model out of sample?

Awarded Feb 20 at 14:22

James

2,7841 gold badge18 silver badges30 bronze badges

Central limit theorem: applicability for assumptions of different tests

Awarded Feb 20 at 13:48

Stefan Pitzer

412 bronze badges

Why is $\frac{\sum^n_{i=1}(X_i-\bar{X})^2}{\sigma^2}$chi-square distributed with $n-1$ degrees of freedom? [duplicate]

Awarded Feb 20 at 9:10

Data

4845 silver badges13 bronze badges

LS estimator of linear regression as weighted average

Awarded Feb 19 at 21:49

emsinko

871 silver badge8 bronze badges

Which test for inter-group and intra-group significance?

Awarded Feb 19 at 15:26

TMOTTM

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What is the intuition behind the independence of $X_2-X_1$ and $X_1+X_2$, $X_i \sim N(0,1)$?

Awarded Feb 19 at 12:36

JohnK

21.9k11 gold badges72 silver badges122 bronze badges

When are the CLR and ALR transformations applicable?

Awarded Feb 19 at 10:43

Mike Surowski

314 bronze badges

Non-linear least absolute deviation regression with multiple global minima

Awarded Feb 19 at 10:34

wtt

816 bronze badges

hyperspherical nature of K means (and other squared error clustering method)

Awarded Feb 19 at 9:41

rivu

4244 silver badges14 bronze badges

What is the best way to visualize a single numeric variable as a heatmap?

Awarded Feb 19 at 8:27

ldrg

1333 bronze badges

Compute the $k$ largest eigenvector in spectral clustering

Awarded Feb 19 at 7:13

jason

1334 bronze badges

Dealing with violation of linear regression assumptions

Awarded Feb 19 at 5:19

OLGJ

3273 silver badges14 bronze badges

Can I use bootstrapping, why or why not?

Awarded Feb 19 at 5:03

Thomas C.

1014 bronze badges

Transforming a variable when original variable does not have explantory power

Awarded Feb 19 at 0:19

Victor

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Confidence Interval on a random quantity?

Awarded Feb 18 at 21:12

shabbychef

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Source for claim that 2 measures that correlate at .70+ measure the same construct?

Awarded Feb 18 at 18:49

Barry Grant

413 bronze badges

Piecewise survival analysis?

Awarded Feb 18 at 16:57

Brandon

3563 silver badges12 bronze badges

Contrasts for type III ANOVA on mixed effects model (lme) in R

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mels

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Bayes classifier

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edgarmtze

2821 gold badge7 silver badges17 bronze badges

residuals vs actuals plot

Awarded Feb 18 at 15:12

Ed Wati

135 bronze badges

How to determine a null and alternative hypotheses and interpret F-test results, a specific example

Awarded Feb 18 at 14:32

Info5ek

1,2214 gold badges13 silver badges22 bronze badges

using neighbor information in imputing data or find off-data (in R)

Awarded Feb 18 at 14:27

rdorlearn

3,6936 gold badges31 silver badges31 bronze badges

Does and 95% CI containing 1 imply no difference in IRR calculations in the same was as in OR calculations?

Awarded Feb 18 at 13:13

Ewen Legg

11 bronze badge

Spherical platykurtic random cloud

Awarded Feb 18 at 12:23

ttnphns

60.4k56 gold badges295 silver badges548 bronze badges

Testing for similarity on count data

Awarded Feb 18 at 11:20

afreen sahiri

436 bronze badges

Estimating the probability that a software change fixed a problem

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SiegeX

1636 bronze badges

Why copula based on CDF instead of PDF

Awarded Feb 17 at 22:08

Maryam

1,7201 gold badge10 silver badges28 bronze badges

Poisson regression predictions

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Pavlin

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