September 2021
September 1
Sometimes we may wish to estimate density for priors and posteriors of a regression model.
— R Function A Day (@rfunctionaday) September 1, 2021
The {estimate_density} function from {bayestestR} 📦 computes and visualizes these estimates 🧮https://t.co/gm8Wf9qr3f#rstats #DataScience pic.twitter.com/SjuoAiuXPo
September 2
If you use {dplyr} and {tidyr} 📦s to wrangle data, you may wish to see some feedback about what different operations did, especially in long piped chains.
— R Function A Day (@rfunctionaday) September 2, 2021
The {tidylog} 📦 functions do exactly this 📝https://t.co/MfpoUZoBRQ#rstats #DataScience pic.twitter.com/hOnonyFHzx
September 3
A cheatsheet is a helpful resource to have at hand while learning a new R package.
— R Function A Day (@rfunctionaday) September 3, 2021
The {get_all_cheatsheets} function from {cheatsheet} 📦 makes it convenient to download all available cheatsheets on your computer in one go! 🙌https://t.co/CxW1EOoaLK#rstats #DataScience pic.twitter.com/CXkPpPWZ5d
September 4
Sometimes you may wish to display a collection of images in a {ggplot2} graph.
— R Function A Day (@rfunctionaday) September 4, 2021
The {geom_point_img} function from {ggimg} 📦 provides just the needed geometric layer! 📷https://t.co/YinETxrQdk#rstats #DataScience pic.twitter.com/rhB2jwgsZe
September 5
Sometimes you may wish to execute a computation in a clean new R process without affecting other R processes.
— R Function A Day (@rfunctionaday) September 5, 2021
The {r} function from {callr} 📦 does exactly this! ✏️https://t.co/CXYdyo3d1P#rstats #DataScience pic.twitter.com/2cBDDRC2nj
September 6
Cox regression model is widely used in medical research to assess the effect of several risk factors on survival time of patients.
— R Function A Day (@rfunctionaday) September 6, 2021
The {ggcoxdiagnostics} function from {survminer} 📦 can help visually assess goodness of model fit 🧐https://t.co/BzVW6ReYFm#rstats #DataScience pic.twitter.com/3z6D7FQgL9
September 7
Sometimes we may need to do high-quality conversion of pdf page(s) to image (png, jpeg, etc.) format.
— R Function A Day (@rfunctionaday) September 7, 2021
The {pdf_convert} function from {pdftools} 📦 provides the needed functionality 🔀https://t.co/DgielR9zoQ#rstats #DataScience pic.twitter.com/bHKPNcnPLQ
September 8
Sometimes you may want to plot different probability distributions with parameters of interest.
— R Function A Day (@rfunctionaday) September 8, 2021
The {ggdistribution} function from {ggfortify} 📦 provides a convenient helper to do so! 🔔https://t.co/8ue1b7Drh2#rstats #DataScience pic.twitter.com/aOHHeMT5KT
September 9
Sometimes we need to perform both addition and subtraction of a quantity (e.g. while computing confidence intervals of an estimate).
— R Function A Day (@rfunctionaday) September 9, 2021
The plus-minus operator (%+-%) from {dipsaus} 📦 can do this conveniently for various data types 🧮https://t.co/1Ia5zzsM9L#rstats #DataScience pic.twitter.com/JimL38L0Sl
September 10
While visualizing group differences, sometimes you may also wish to include some additional descriptive statistics in the plot itself.
— R Function A Day (@rfunctionaday) September 10, 2021
The {ggsummarystats} function from {ggpubr} 📦 provides a flexible way to do so! 📊https://t.co/DMzyXViicx#rstats #DataScience pic.twitter.com/lIrBWo1Gmz
September 11
{purrr} 📦’s {map} and {map2} function families can apply a single- or two-argument functions to a list. But what if you want to apply a function with multiple arguments?
— R Function A Day (@rfunctionaday) September 11, 2021
The {pmap_} function family addresses exactly this problem 🙌https://t.co/FrCzOUFLtJ#rstats #DataScience pic.twitter.com/oSQRgS4ywS
September 12
Euler diagram, a way to visualize set relationships, is a generalization of Venn diagram since it relaxes the requirement that all set interactions be present.
— R Function A Day (@rfunctionaday) September 12, 2021
The {euler} function from {eulerr} 📦 easily produces these diagrams 🖇https://t.co/7eM2ZqEeVG#rstats #DataScience pic.twitter.com/aEBXBdIdt2
September 13
While exploring data, one often needs a quick and easy way to create dot-and-whisker plots of coefficient estimates for regression models.
— R Function A Day (@rfunctionaday) September 13, 2021
The {ggcoef_model} function from {GGally} 📦 produces such plots with elegant defaults 🤩https://t.co/atW3RTPWEH#rstats #DataScience pic.twitter.com/j0Zj2fp50Q
September 14
Sometimes you may wish to take a snapshot of a webpage, an rmarkdown document, or a Shiny application from R itself.
— R Function A Day (@rfunctionaday) September 14, 2021
The {*shot} function family from {webshot} 📦 provides a convenient way to do so! 📸https://t.co/SR0NPM36Xl#rstats #DataScience pic.twitter.com/2IvYDAB3yo
September 15
If you use both R and python, sometimes you may wish to convert your Jupyter notebooks so that you can modify them further with {rmarkdown}.
— R Function A Day (@rfunctionaday) September 15, 2021
The {convert_ipynb} function from {rmarkdown} 📦 can do this conversion 🔄https://t.co/6pnduEMAZg#rstats #DataScience pic.twitter.com/IxtlF0faKc
September 16
Dropbox is a popular file hosting service and we may sometimes wish to interact with this application from the comfort of R itself.
— R Function A Day (@rfunctionaday) September 16, 2021
The {drop_*} function family from {rdrop2} 📦 provides just the toolbox! 🧰 https://t.co/THtnR1fqB2#rstats #DataScience pic.twitter.com/AfrKlSlKCB
September 17
Sometimes we may need to standardize (z-score) data, i.e. express it in terms of standard deviation.
— R Function A Day (@rfunctionaday) September 17, 2021
The {standardize} function from {datawizard} 📦 easily computes them, and provides further customizations (e.g. robust variant)! 🙌https://t.co/yavQlVXuey#rstats #DataScience pic.twitter.com/mNeyfbohSg
September 18
Slope graphs are a handy tool for visualizing trends in paired data with multiple observations.
— R Function A Day (@rfunctionaday) September 18, 2021
The {newggslopegraph} function from {CGPfunctions} 📦 provides a helper to quickly prepare such a graph! 📈https://t.co/Rw9BmRpPPc#rstats #DataScience pic.twitter.com/XCO6SOocTa
September 19
Compiling LaTeX to PDF can be troublesome; often due to missing LaTeX packages. We may wish that such packages are automatically installed, making compilation painless.
— R Function A Day (@rfunctionaday) September 19, 2021
The {pdflatex} function from {tinytex} 📦 does exactly this! 👏https://t.co/4Ga94fTm47#rstats #DataScience pic.twitter.com/JX6o9YAi1d
September 20
Like in SQL, we may sometimes wish to change rows in one dataset based on rows in another dataset.
— R Function A Day (@rfunctionaday) September 20, 2021
The {rows_} function family in {dplyr} 📦 provides this functionality! 🖇https://t.co/uSpmlee90H#rstats #DataScience pic.twitter.com/mLTwGqKMvD
September 21
While visualizing distributions, boxplots can hide bimodality & violins can show non-existent data.
— R Function A Day (@rfunctionaday) September 21, 2021
Sina plots, where points are jittered proportional to density, provide a good solution & {ggforce::geom_sina} supplies the layer! 👏https://t.co/BR5iiCcf6s#rstats #DataScience pic.twitter.com/IrYGYqXUtt
September 22
The coefficient of determination (R^2) provides an absolute goodness-of-fit index for a regression model and is used to assess performance.
— R Function A Day (@rfunctionaday) September 22, 2021
The {r2} function from {performance} 📦 computes it for a variety of regression models! 🧮https://t.co/y3qQQOXuRv#rstats #DataScience pic.twitter.com/pJCrx4MOP4
September 23
A common issue with watching movies with subtitle files is that they can be out of sync with each other.
— R Function A Day (@rfunctionaday) September 23, 2021
The {srt_shift} function from {srt} 📦 can help shift the dialogues to sync with video and write a new subtitle file! 🎥🍿https://t.co/j5V6SnCfZ7#rstats #DataScience pic.twitter.com/JE234uj5e7
September 24
Hash tables can efficiently look up values irrespective of the size of the table.
— R Function A Day (@rfunctionaday) September 24, 2021
The {hash} function from the eponymous 📦 provides a hash-like data structure and the necessary methods for hash operations in native R style! 🔎https://t.co/QrxzzANqFV#rstats #DataScience pic.twitter.com/b75HRHxS1m
September 25
The sunset funnel plot includes study-level power info and acts as a diagnostic tool in meta-analysis to examine the power studies had to detect an effect of interest.
— R Function A Day (@rfunctionaday) September 25, 2021
The {metaviz::viz_sunset} function can easily create them! 🌅 https://t.co/cqlXpmUh0f#rstats #DataScience pic.twitter.com/lf1Pefk5XH
September 26
Although visualizing variable distribution via boxplot is easy, we may wish to avoid redundant vertical mirroring of the distribution.
— R Function A Day (@rfunctionaday) September 26, 2021
The {geom_half_boxplot} function from {gghalves} 📦 provides exactly such a geometric layer! 🙌https://t.co/0kfnVPtUWU#rstats #DataScience pic.twitter.com/2KqVyhOPIA
September 27
Item analysis, a psychometric technique, selects few items (from a large pool) to index a psychological construct.
— R Function A Day (@rfunctionaday) September 27, 2021
The {tab_itemscale} function from {sjPlot} 📦 carries out and produces elegant HTML tables for item analysis 🧽https://t.co/8Z5DzerVaU#rstats #DataScience pic.twitter.com/uIXZrVsr0Z
September 28
XML language is ubiquitous in storing and transporting a wide array of data structures and sometimes we may wish to work with it in R.
— R Function A Day (@rfunctionaday) September 28, 2021
The {as_list} function from {xml2} 📦 converts XML document nodes to a familiar R list! 🔀https://t.co/OqvPGvv1Ce#rstats #DataScience pic.twitter.com/fddfsNc0z5
September 29
Even if you know markdown syntax well, sometimes you may wish to generate it algorithmically.
— R Function A Day (@rfunctionaday) September 29, 2021
The {md_} function family from {gluedown} 📦 can be of help here 🤖https://t.co/VXXO0Ce3Mu#rstats #DataScience pic.twitter.com/EklzKUpHkB
September 30
Out of curiosity or while working in a memory-constrained setting, sometimes you may wish to know roughly how much memory is being used by R.
— R Function A Day (@rfunctionaday) September 30, 2021
The {mem_used} function from {lobstr} 📦 provides such an estimate 📀https://t.co/SwebVXHUrx#rstats #DataScience pic.twitter.com/SbEWyUZdPl