{r setup, include=FALSE} knitr::opts_chunk$set(echo = TRUE)

R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

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{r cars} summary(cars)

Including Plots

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{r pressure, echo=FALSE} plot(pressure)

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##Functionss

###mean()

notes notes notes

mean(c(1,2,3,4,5,6,44))

?c
?seq
?length
?var
?data.frame
?plot
?abline
?hist
?mean

var()

##or we can use bulleted lists

Functions Used in Class Today

  • mean () - Generic function for the (trimmed) arithmetic mean.
  • var() - computes the variance of x
  • c() - function which combines its arguments to form a vector
  • seq() - Generate regular sequences.
  • length() - Get or set the length of vectors (including lists) and factors
  • data.frame() - creates data frames, tightly coupled collections of variables which share many of the properties of matrices and of lists
  • plot() - Draw a scatter plot with decorations such as axes and titles in the active graphics window.
  • abline() - adds one or more straight lines through the current plot.
  • hist() - computes a histogram of the given data values