R: Plot Error Bars – Details. errbar adds vertical error bars to an existing plot or makes a new plot with error bars. It can also make a horizontal error bar plot that shows error bars ……

Package ‘ggplot2’ – The Comprehensive R Archive Network – Package ‘ggplot2’ December 22, 2014 Type Package Title An implementation of the Grammar of Graphics Version 1.0.0 Author Hadley Wickham <h.wickham@gmail.com ……

Bar plot with error bars in R | Heuristic Andrew – Oct 20, 2013 · Here’s a simple way to make a bar plot with error bars three ways: standard deviation, standard error of the mean, and a 95% confidence interval….

Package ‘psych’ – The Comprehensive R Archive Network – 00.psych 11 guttman8 different measures of reliability mat.regressstandardized multiple regression from raw or correlation matrix input polyserialpolyserial and ……

CRAN – The Comprehensive R Archive Network – What are R and CRAN? R is ‘GNU S’, a freely available language and environment for statistical computing and graphics which provides a wide variety of statistical ……

1.3 R and statistics. Our introduction to the R environment did not mention statistics, yet many people use R as a statistics system. We prefer to think of it of an ……

You’ll notice that when importing a text file created in excel with the default date format, R treats the date variable as a Factor within the data frame….

Nov 22, 2011 · The “dynamite plot”, a bar chart plotting the a mean with a error bar, is one of the most reviled types of image among statisticians. Reasons to dislike ……