Old Faithful presentation

Developing Data Products Coursera

Ger Inberg

Introduction to Old Failthful

Old Faithful is a cone geyser located in Wyoming, in Yellowstone National Park in the United States. Old Faithful was named in 1870 during the Washburn-Langford-Doane Expedition and was the first geyser in the park to receive a name. It is one of the most predictable geographical features on Earth, erupting almost every 63 minutes.

alt text

Open the related shiny app

Data set

The chosen dataset contains the waiting time between eruptions and the duration of the eruption for the Old Faithful geyser. It is stored as a data frame with 272 observations on 2 variables.

  • eruptions numeric Eruption time in mins
  • waiting numeric Waiting time to next eruption
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    1.60    2.16    4.00    3.49    4.45    5.10
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    43.0    58.0    76.0    70.9    82.0    96.0

Scatter plot waiting time vs eruption duration

plot of chunk unnamed-chunk-2

Eruption duration

plot of chunk unnamed-chunk-3