Multivariable Model Fitting as Applied to Air, a Physical Chemistry Experiment

Antle, Jonathan P.; Godbout, Jerry T.; Simpson, Scott

doi:10.1021/acs.jchemed.1c01241

Cited by 1 publication

(2 citation statements)

References 22 publications

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“…R Commander and Factoshiny can be loaded in R project or RStudio. Recently, RStudio has gained popularity in the academic community. , Thus, in my YouTube videos, R Commander was loaded in RStudio.…”

Section: Experimental Overviewmentioning

confidence: 99%

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Hypothesis Tests and Exploratory Analysis Using R Commander and Factoshiny

Borges

2022

J. Chem. Educ.

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An understanding of statistical concepts is necessary for a chemist with a complete education. Here, statistical tests were taught using the R Commander and the Factoshiny packages. These packages run on R software and have a graphical user interface (GUI), which allows students to do statistical tests quickly and easily. These packages were presented through 14 case studies. In each case study, a data set was provided in MS Excel format, and a series of questions were answered using these packages. Hypothesis tests and exploratory analysis (principal component analysis; PCA) were taught using R Commander and Factoshiny, respectively. Outlier results were found using boxplots. Data normality was checked using histograms and the Shapiro− Wilk test. Normally distributed data sets were compared using parametric hypothesis tests (t test, paired t test, one-way ANOVA, two-way ANOVA, one-way repeated measure ANOVA). Non-normally distrusted data sets were compared using nonparametric tests (Wilcoxon, Kruskal−Wallis, and Friedman tests). Results provided by these parametric and nonparametric tests were also verified using plots (plot of means and boxplots).

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Section: Experimental Overviewmentioning

confidence: 99%

“…Recently, RStudio has gained popularity in the academic community. 74,75 Thus, in my YouTube videos, R Commander was loaded in RStudio.…”

Section: ■ Experimental Overviewmentioning

confidence: 99%