# \#visualisation

**URL:** https://discourse.mc-stan.org/tag/visualisation/181.md

[Latest](https://discourse.mc-stan.org/latest.md) · [Categories](https://discourse.mc-stan.org/categories.md) · [Tags](https://discourse.mc-stan.org/tags.md)

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## [Plotting predictions based on the linear combination of predictors](https://discourse.mc-stan.org/t/plotting-predictions-based-on-the-linear-combination-of-predictors/33386)

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**Author:** [@achetverikov](https://discourse.mc-stan.org/u/achetverikov)\
**Replies:** 2\
**Last updated:** [November 21, 2023, 9:44am UTC](https://discourse.mc-stan.org/t/plotting-predictions-based-on-the-linear-combination-of-predictors/33386 "2023-11-21T09:44:29Z")

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I am modelling a forced-choice task with two alternatives where each alternative is characterized by two parameters that are supposed to reflect some underlying signals. Since these parameters have the same effect on eac…

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## [Forest plot with chains not merged](https://discourse.mc-stan.org/t/forest-plot-with-chains-not-merged/33140)

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**Author:** [@Loni92](https://discourse.mc-stan.org/u/Loni92)\
**Replies:** 2\
**Last updated:** [October 24, 2023, 2:52pm UTC](https://discourse.mc-stan.org/t/forest-plot-with-chains-not-merged/33140 "2023-10-24T14:52:35Z")

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Hi all, I have a fairly simple question. I have posterior draws from fitting a model using cmdstanr. I’m wondering how I can make a forest plot showing medians and credible intervals for each chain (as opposed to mergin…

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## [Evaluating a brms model with a Gaussian Process](https://discourse.mc-stan.org/t/evaluating-a-brms-model-with-a-gaussian-process/31721)

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**Author:** [@jgoldberg](https://discourse.mc-stan.org/u/jgoldberg)\
**Replies:** 5\
**Last updated:** [June 14, 2023, 9:21pm UTC](https://discourse.mc-stan.org/t/evaluating-a-brms-model-with-a-gaussian-process/31721 "2023-06-14T21:21:28Z")

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Hi everyone, I’ve spent a good amount of time over the past several months reading and thinking about Gaussian processes. I’m now starting to implement them in some work them I’m doing, modeling time-series of various v…

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## [MCMC Monitor -- Online monitoring of Stan runs](https://discourse.mc-stan.org/t/mcmc-monitor-online-monitoring-of-stan-runs/31568)

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**Author:** [@JSoules](https://discourse.mc-stan.org/u/JSoules)\
**Replies:** 3\
**Last updated:** [June 1, 2023, 5:44pm UTC](https://discourse.mc-stan.org/t/mcmc-monitor-online-monitoring-of-stan-runs/31568 "2023-06-01T17:44:01Z")

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Hello, Stan community! I’d like to make you aware of a new tool we’re developing here at Flatiron: MCMC Monitor. It allows monitoring of Stan runs, both in progress and after completion. Consider it a ShinyStan that als…

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## [Consulting contract to evaluate ArviZ visualizations](https://discourse.mc-stan.org/t/consulting-contract-to-evaluate-arviz-visualizations/26634)

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**Author:** [@OriolAbril](https://discourse.mc-stan.org/u/OriolAbril)\
**Replies:** 0\
**Last updated:** [March 2, 2022, 9:47pm UTC](https://discourse.mc-stan.org/t/consulting-contract-to-evaluate-arviz-visualizations/26634 "2022-03-02T21:47:27Z")

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ArviZ got 2000 USD via GSoD 2021 to hire an independent contractor to evaluate ArviZ dataviz functions, make sure that there are no visualizations we have overlooked and should be added to the library, that the default s…

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## [Struggling with add\_epred\_draws() on model with measurement error term](https://discourse.mc-stan.org/t/struggling-with-add-epred-draws-on-model-with-measurement-error-term/30733)

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**Author:** [@amynang](https://discourse.mc-stan.org/u/amynang)\
**Replies:** 0\
**Last updated:** [March 15, 2023, 9:26am UTC](https://discourse.mc-stan.org/t/struggling-with-add-epred-draws-on-model-with-measurement-error-term/30733 "2023-03-15T09:26:22Z")

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Hi! Not sure if this is a limitation or a special case where proceeding is un-intuitive: In models with measurement error term, tidybayes::add\_epred\_draws() throws an error: library(brms) library(modelr) library(tidyb…

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## [How to extract plot and predict from pystan3](https://discourse.mc-stan.org/t/how-to-extract-plot-and-predict-from-pystan3/29250)

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**Author:** [@EMNP](https://discourse.mc-stan.org/u/EMNP)\
**Replies:** 1\
**Last updated:** [October 28, 2022, 2:41pm UTC](https://discourse.mc-stan.org/t/how-to-extract-plot-and-predict-from-pystan3/29250 "2022-10-28T14:41:11Z")

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Hi, little premise: I’m a GIS-web developer, not a statistician and I understand very little of stan. Nevertheless, I have been tasked to convert an R-stan script into python pystan3 for a research project. The colleague…

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## [How to visualize effects of different levels in group-level effects?](https://discourse.mc-stan.org/t/how-to-visualize-effects-of-different-levels-in-group-level-effects/25051)

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**Author:** [@mavavilj](https://discourse.mc-stan.org/u/mavavilj)\
**Replies:** 0\
**Last updated:** [October 30, 2021, 12:27pm UTC](https://discourse.mc-stan.org/t/how-to-visualize-effects-of-different-levels-in-group-level-effects/25051 "2021-10-30T12:27:07Z")

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How to visualize effects of different levels in group-level effects? Such as formulas including terms of type (1|somegroupingpredictor) or (mo(income)|gender) (assuming that we want to model income as grouped by gender. …

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## [Robust Gaussian Process Modeling Michael Betancourt](https://discourse.mc-stan.org/t/robust-gaussian-process-modeling-michael-betancourt/24371)

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**Author:** [@mmabaei](https://discourse.mc-stan.org/u/mmabaei)\
**Replies:** 2\
**Last updated:** [September 20, 2021, 6:39pm UTC](https://discourse.mc-stan.org/t/robust-gaussian-process-modeling-michael-betancourt/24371 "2021-09-20T18:39:28Z")

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Hi everyone, I am trying to read through the GP lecture that is presented by professor Michael Betancourt (one of the developer of the Stan) from his website: https://betanalpha.github.io/assets/case\_studies/gaussian\_p…

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## [How to plot interaction effects in R using brms](https://discourse.mc-stan.org/t/how-to-plot-interaction-effects-in-r-using-brms/24237)

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**Author:** [@anadeeg](https://discourse.mc-stan.org/u/anadeeg)\
**Replies:** 5\
**Last updated:** [September 8, 2021, 6:48pm UTC](https://discourse.mc-stan.org/t/how-to-plot-interaction-effects-in-r-using-brms/24237 "2021-09-08T18:48:25Z")

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Hi there, I am looking to plot an interaction effect from a multilevel model using brms in R. I successfully have used the conditional\_effects function (Display Conditional Effects of Predictors — conditional\_effects.br…

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## [Animating MCMC with Python](https://discourse.mc-stan.org/t/animating-mcmc-with-python/23936)

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**Author:** [@ichinano](https://discourse.mc-stan.org/u/ichinano)\
**Replies:** 4\
**Last updated:** [August 16, 2021, 2:35pm UTC](https://discourse.mc-stan.org/t/animating-mcmc-with-python/23936 "2021-08-16T14:35:48Z")

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Hi everyone, I am currently running an MCMC model with non-linear ODEs with so many parameters and have been having some difficulties in getting results that I expected. I am thinking that it would be very helpful if th…

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## [Fanplots not currently available in the plot toolbox?](https://discourse.mc-stan.org/t/fanplots-not-currently-available-in-the-plot-toolbox/22247)

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**Author:** [@Kbus007](https://discourse.mc-stan.org/u/Kbus007)\
**Replies:** 2\
**Last updated:** [May 2, 2021, 1:40pm UTC](https://discourse.mc-stan.org/t/fanplots-not-currently-available-in-the-plot-toolbox/22247 "2021-05-02T13:40:48Z")

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I was looking at the plot functionalities for stanfit objects and it seems that among all the current plot possibilities provided by rstan and bayesplot packages, fanplots are not yet available ? I have a series of para…

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## [Visualizing predictive uncertainty](https://discourse.mc-stan.org/t/visualizing-predictive-uncertainty/21518)

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**Author:** [@Bill\_Harris](https://discourse.mc-stan.org/u/Bill_Harris)\
**Replies:** 3\
**Last updated:** [April 1, 2021, 6:09am UTC](https://discourse.mc-stan.org/t/visualizing-predictive-uncertainty/21518 "2021-04-01T06:09:13Z")

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In RaOS, figure 11.1 shows a nice way to plot inferential uncertainty of a model, as I understand it. I’m searching for a similarly easy way to plot predictive uncertainty, both in the given range of the predictor (momi…

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## [Drawing Spline Regression Model with (B-spline)](https://discourse.mc-stan.org/t/drawing-spline-regression-model-with-b-spline/21283)

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**Author:** [@jen1009](https://discourse.mc-stan.org/u/jen1009)\
**Replies:** 1\
**Last updated:** [March 14, 2021, 8:20pm UTC](https://discourse.mc-stan.org/t/drawing-spline-regression-model-with-b-spline/21283 "2021-03-14T20:20:57Z")

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I’m trying to draw a regression line like this picture . However, the result of my code looks like this. What am I missing or where am I wrong? Thank you so much! data("cherry\_blossoms") d \<- cherry\_blossoms d2 \<- d\[c…

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## [I cannot get the conditional\_effects I am aiming for when plotting ordinal data](https://discourse.mc-stan.org/t/i-cannot-get-the-conditional-effects-i-am-aiming-for-when-plotting-ordinal-data/20986)

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**Author:** [@simon.dp](https://discourse.mc-stan.org/u/simon.dp)\
**Replies:** 1\
**Last updated:** [March 5, 2021, 8:30pm UTC](https://discourse.mc-stan.org/t/i-cannot-get-the-conditional-effects-i-am-aiming-for-when-plotting-ordinal-data/20986 "2021-03-05T20:30:12Z")

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Just for good measures, I am running BRMS 2.14.4 on Win10 I am trying to model and visualize an ordinal factor predicted by an interaction of another factor and a continuous feature. I have tweaked the trolley data fro…