vandenman

Comments

• Hi Liesbeth, Can you attach one of these jasp files either here or on GitHub? If you'd rather not post the data publicly, you can also email it to d.vandenbergh at jasp-stats.org. Cheers, Don

  in Files that I saved disappear or not able to open Comment by vandenman October 2020
• Hi, Unfortunately, it's not possible to do that yet, but it's high on the priority list! Cheers, Don

  in How to use machine learning model JASP creates Comment by vandenman June 2020
• Hi Martin, is that the "non-frequentist" R2 (i.e., the R2 considering all the models, not just the point-estimate of the best model a la frequentist R2?) Yes. The Bayesian R-squared is derived from Gelman's unpublished manuscript. So R2 is…

  in JASP Bayesian ANCOVA Model Averaged R2 Comment by vandenman June 2020
• Hi, sorry for the late reply. Regularized linear regression does not allow for interaction effects at the moment. If you open a feature request at our GitHub page we'll assign it to the appropriate developer. Cheers, Don

  in Interaction effects in regression Comment by vandenman June 2020
• Unfortunately, there is no way to compute the reliability for an item with zero variance. If you try this in R, you get the following: library(psych) df <- data.frame(x = rnorm(10), y = rnorm(10), z = 1) var(df$z) # no variance [1] 0 alpha(df) S…

  in Error análisis de confiabilidad Comment by vandenman April 2020
• Hi Rohan, See GitHub for an example of how to get uncertainty on the level of the data (the code is too long for the forum) Cheers, Don

  in Credible Interval for Repeated Measures ANOVA Comment by vandenman April 2020
• Unfortunately this is not trivial to implement. The relevant functions are .BANOVAsamplePosteriors (https://github.com/jasp-stats/jasp-desktop/blob/development/JASP-Engine/JASP/R/commonAnovaBayesian.R#L1506) and .BANOVAgetSMIResidRsq (https://gi…

  in Model averaged Q-Q plots in R Comment by vandenman February 2020
• Which analysis are you using? However I am very confused as when I attempt to use the machine learning in JASP I am not seeing what the coefficients would be for each of the predictors in the model or what the actual model looks like. Well some ana…

  in Newbie Help JASP Machine learning Comment by vandenman February 2020
• Hi Wim, If I understand your question correctly, you're wondering why the intercept, β0, is equal to the mean of the predictors, mean(y). By default, the predictors are standardized in BAS (the R package underlying Bayesian linear regression). Ther…

  in Incorrect intercept in Bayesian linear regression Comment by vandenman February 2020
• Hi MariaSz, It appears that the legend labels disappeared! Here a screenshot of a smaller example: http://forum.cogsci.nl/uploads/968/UGC2KYGHEMLL.png So the red line indicates the sample edge strength, the black line indicates the mean of the boot…

  in Accuracy and stability estimation - network analysis Comment by vandenman August 2019
• Hi scottyglasgow, http://forum.cogsci.nl/uploads/012/0UZCPZDADWRE.jasp http://forum.cogsci.nl/uploads/054/FI2EOQ4UXDCW.csv The interface for assigning nodes to groups is indeed a bit clunky... attached a jasp and .csv file with a minimal example. Le…

  in JASP NETWORK ANALYSIS Comment by vandenman August 2019
• Hi Agata, The code for Bayesian linear regression can be found here: https://github.com/jasp-stats/jasp-desktop/blob/development/JASP-Engine/JASP/R/regressionlinearbayesian.R The specific call to the BAS package (BAS::bas.lm) is at line 491. Let me…

  in Bayesian Linear Regression analysis code Comment by vandenman July 2019
• Hi Camilla, From the output I cannot derive what went wrong. Could you perhaps send me the .jasp file at d.vandenbergh@jasp-stats.org? The data will be kept confidential of course. Best, Don

  in NaN in the BFinclusion Comment by vandenman July 2019
• Happy to hear the problem solved itself! In case anything is still unclear feel free to ask.

  in interactions Inclusion BF for matched models Comment by vandenman June 2019
• Hi, at the moment there is no way to compute this in JASP. Intraclass correlations are on the todo list.

  in Intraclass correlation coefficien (ICC) in JASP? Comment by vandenman June 2019
• At the moment, JASP does not support mixed nonparametric ANOVAs. It is possible to do a Kruskal-Wallis test but that only applies to one-way ANOVAs. Do keep in mind that for any ANOVA the residuals need to be normally distributed, not the dependent …

  in Unbalanced non-parametric mixed ANOVA? Comment by vandenman June 2019
• The difference in the analysis is that JASP compares all models to the Null model that includes subject. To replicate the results in R you would have to include "subj" into the model as well. In your example, it wasn't included which you …

  in Discrepant results between JASP & BayesFactor - Repeated Measures ANOVA Comment by vandenman January 2019
• Hi Mark, Thanks for your interest in JASP! What you're observing might be an effect of the prior which shrinks parameters to 0. If the sample is large (N = 100) the shrinkage will be minimal, but since your dataset consists of 13 observations t…

  in Linear vs Bayesian regression anomalies Comment by vandenman May 2018
• Hi Sophie, R-squared is calculated in the usual way and the results for any particular model are identical to the frequentist one (as illustrated by the screenshot). (Image) The posterior means of the parameters are used in the calculation of th…

  in R-squared for Bayesian linear regression in JASP Comment by vandenman April 2018
• Hi Clair, This should be doable in SPSS or excel! To color the nodes you need a grouping variable with a specific format. For example: If you have 3 groups, and 9 variables (3 per group) your grouping variable would look like: "$Variable na…

  in Network analysis - grouping nodes? Comment by vandenman January 2018