Past Meeting Notes

Here you can find the full repository of notes from previous UQRUG Meetings.
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UQRUG 53

Overview: 2 years of R news overview + drop in session
Questions: debugging; large datasets; complex time-based recoding

August 28, 2024

UQRUG 52

Overview: Using taskscheduleR to automate scripts

UQRUG 51

UQRUG 50

Overview: Using Data to Viz to help visualise data
Questions: NA

UQRUG 49

Overview: Using R and Rstudio on the HPC
Questions: NA

UQRUG 48

Overview: Identify Data Problems using visdat.
Questions: GLMM Help, two y-axis plot, ggplot, splitting data into hours

UQRUG 47

Overview: Webscraping with rvest.
Questions: loading packages, time series data, reading data into R, ggpicrust, dealing with windows file paths.

February 28, 2024

UQRUG 46

Overview: Creating CVs in R with vitae and RMarkdown.
Questions: ggplotly bumpchart, loading packages, statistics, heatmap help, tibble column headings.

January 31, 2024

UQRUG 45

Overview: End of Year Cool But Useless Competition.
Questions: lmer model

December 13, 2023

UQRUG 44

Overview: Cool But Useless R Packages at ResBazQlD.
Questions: Network stability, RMarkdown, images, plotly, Correlations

November 22, 2023

UQRUG 43

Overview: Supervised Machine Learning in R.
Questions: None!

October 25, 2023

UQRUG 42

Overview: Parallization in R.
Questions: parallels, HPC, memory utilisation, detectCores, for loops

September 27, 2023

UQRUG 41

Overview: Basic Statistics in R.
Questions: stats, network analysis, NetCDF, spatial, normality of residuals, intra class correlations, plotting multiple linear regression, reverse geocoding, LD Analysis with genepop

August 30, 2023

UQRUG 40

Overview: Using quarto and revealjs to create presentations with R markdown.
Questions: learning about knitr, combining shiny with quarto, fixing OneDrive breaking R, cmdstanr, brms

UQRUG 39

Overview: Using data.table for fast data manipulation.
Questions: data.table and for loops, csv vs xlsx, LMER, keeping code tidy and readable, standard R operators, using .RData files, storing descriptive stats in a matrix, mutating all cells in dataframe, HPC help, RMarkdown errors

UQRUG 38

Overview: Using R for Mailouts.
Questions: Reloading packages, Combining multiple tables/kables, using HedgeDoc, using overlead for theses, formatting data for population genetics analysis

UQRUG 37

Overview: AI assisted coding.
Questions: Regular Expressions, data.table complete() equivalent, filtering outliers, boxplots, RStudio new line bug

UQRUG 36

Overview: Websites with Quarto.
Questions: Bayesian Stats, glm(), R Markdown, Functional Programming, Code debugging

UQRUG 35

Is it ethical? But is it possible?

February 22, 2023

UQRUG 34

Overview: Flexdashboard.
Questions: ggplot2

January 25, 2023

UQRUG 33

Overview: gganimate and plotly animations.
Questions: barplots, ggplot2, Excel comparison, ggarrange

December 7, 2022

UQRUG 32

Overview: quanteda.
Questions: ggplot2 facets, MSstats, forest plot with meta

October 26, 2022

UQRUG 31

Covered some of the basics around creating, and the differences between, arrays and dataframes.

September 28, 2022

UQRUG 30

How to read multiple csv files in as separate variables efficiently for a Shiny app. Looked at creating a list of files, and then using the read_csv function in rdrr package…

August 24, 2022

UQRUG 29

Creating a normal distribution line for a histogram. Using ggplot geom_histogram() and the stat_function() creates the plot, but the line and histogram are scaled…

UQRUG 28

The trick here is to:

UQRUG 27

Questions: ggplot2, species distribution modelling, anomalies in chronology, R Markdown, factoextra

UQRUG 26

Automate running the script (on Windows): https://cran.r-project.org/web/packages/taskscheduleR/index.html

UQRUG 25

Use terra instead of raster, and use a temporary directory:

UQRUG 24

Convert a table to a gt object and then save it to RTF (which can be opened by Word).

February 23, 2022

UQRUG 22

Example of for loop vs map() function from purrr package.

November 15, 2021

UQRUG 21

Stéphane
Aklilu
Uttara

October 18, 2021

UQRUG 20

Stéphane (Library): thinking a lot about an “OpenStreetMap Recipes” package…
Catherine: Library/Postdoc Biology, code/data into a repository for a paper
Shaoyang: QAAFI…

September 21, 2021

UQRUG 19

Links we talked about today:

August 16, 2021

UQRUG 18

Technical difficulties! No notes.

UQRUG 17

“[In dplyr::filter], note that when a condition evaluates to NA the row will be dropped, unlike base subsetting with [.”

UQRUG 16

See if you find an interesting dataset to play with: https://github.com/rfordatascience/tidytuesday#datasets

UQRUG 15

See if you find an interesting dataset to play with: https://github.com/rfordatascience/tidytuesday#datasets

UQRUG 14

Bechdel Test dataset: https://github.com/rfordatascience/tidytuesday/blob/master/data/2021/2021-03-09/readme.md

UQRUG 13

Stéphane Guillou (Library): just happy to help and share resources! Looking for a quick way to do adress lookups.
Paula Andrea Martinez (co-organiser/ helper) Happy to…

February 15, 2021

UQRUG 12

This is our first anniversary! UQRUG has one year!!

January 25, 2021

UQRUG 11

November 16, 2020

UQRUG 10

Main: TidyTuesday.
Other topics: dplyr:case_when() to recode, working directory, ggplot2 labels and limits, epiDisplay, lme4, Seurat, reshape2, lattice.

October 19, 2020

UQRUG 9

Main: TidyTuesday.
Other topics: Base R, lidr, ggplot2 extensions, ggfortify for PCA.

September 21, 2020

UQRUG 8

Questions: CLMM, GLM, boxplot, between and near filters in Tidyverse

August 17, 2020

UQRUG 7

Questions: quosure and quasiquotation, favourite packages, reading XML data, SAS to R migration, RNAseq

UQRUG 6

NA

UQRUG 5

Overview: reprex, R 4.0 news
Questions: asymptotic regression model, revtools, uavRst, Shiny

UQRUG 4

Questions: tidy data, dplyr 1.0, R 4.0, R Markdown, bookdown, supply chains, catchment restoration

UQRUG 3

UQRUG 2

Topics: Tidyverse, R Markdown thesis template

February 24, 2020

UQRUG 1

Questions: installation, Shiny, BibTex in R Markdown, custom functions, 4.0 changes

January 20, 2020