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.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

Including Plots

You can also embed plots, for example:

subject_name<-c("John Doe","Jane Doe", "Steve Graves")
temperature<-c(98.1, 98.6,101.4)
flu_status<-c(FALSE,FALSE,TRUE)

gender<-factor(c("MALE","FEMALE","MALE"))

blood<-factor(c("O", "AB","A"),levels = c("A","B","AB","O"))

blood<-factor(c("O", "AB+","A-"),levels = c("A","B","AB-","O"))
symptoms<-factor(c("SEVER","MILD","MODERATE"),levels=c("MILD","MODERATE","SERVER"),ordered=TRUE)
symptoms
## [1] <NA>     MILD     MODERATE
## Levels: MILD < MODERATE < SERVER
symptoms>"MODERATE"
## [1]    NA FALSE FALSE
pt_data <-data.frame(subject_name, temperature, flu_status,gender, blood, symptoms,stringsAsFactors = FALSE)
pt_data
##   subject_name temperature flu_status gender blood symptoms
## 1     John Doe        98.1      FALSE   MALE     O     <NA>
## 2     Jane Doe        98.6      FALSE FEMALE  <NA>     MILD
## 3 Steve Graves       101.4       TRUE   MALE  <NA> MODERATE
pt_data$temp_c<-(pt_data$temperature-32)*(5/9)

pt_data[c("temperature", "temp_c")]
##   temperature   temp_c
## 1        98.1 36.72222
## 2        98.6 37.00000
## 3       101.4 38.55556

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.