DHARMa

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Understanding uniformity of DHARMa residuals

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tqdo

Questions about dispersion tests

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Questions via email: > In the help for testDispersion you say: > > "if refit = F, the function uses testGeneric to compare the variance of the observed raw residuals...

florianhartig

Interpretation of lme4 residual plots

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Via email: I have two models, and I created the diagnostic plots for them using the Dharma package and the simulateResiduals() function. There seem to be a couple of significant...

florianhartig

Request via email for a pdf version of the vignette. Theoretically, it should be possible to do this automatically, see - https://stackoverflow.com/questions/31214524/how-do-i-produce-r-package-vignettes-in-multiple-formats - https://community.rstudio.com/t/html-and-pdf-vignette-reasonable/132749 But I'm not sure if it's...

florianhartig

Need to order time input when using recalculateResiduals and testTemporalAutocorrelation?

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Hi @florianhartig When using recalculateResiduals, the output gives the scaled residuals but not the corresponding groups (time in my case). This might cause confusion because I think the aggregate function...

jpourtois

Model comparison / overdispersion comparison via DHARMa residual tests

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Via email: > I have a question about interpretation of p-value obtained from DHARMa function tests, such as overdispersion or uniformity test. > > Suppose, I am running two models...

florianhartig

Residual interpretation for Poisson regresssion

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Via email: [...] I have a qqplot with pearson residuals from a poisson GLM that doesnt look so good (in attachment), and a Kolmorov-Smirnoff test indicated sig non linear distribution....

florianhartig

Identify outliers using DHARMa testOutliers function

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Hi, I am pretty new to DHARMa and GLMM model diagnosis using this new framework. First of all, I want to thank you for the development of the package and...

javimorente

DHARMA Diagnostics shows KS deviation in glmm with Gaussian distribution

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Hello Florian, It's the first time I use DHARMA as a diagnostic tool and I went through the tutorial and some previous issues (eg. #181) but I am still not...

BaptisteSadoughi

I have been trying to perform beta regression modeling with random effects. I have sex ratio as the response variable, and climatic variables + years (1970-2021) as predictor variables. Different...

rahulravi777