Predicting son height with his father's height

Kislenok Roman
09/11/2014

Presenting web-application

This presentation is related to our application that can help you predict son's height using his father's height.

You can find application here

site image

Working with site

  • To predict son's height you should move slider to father's actual height: slider

  • Application will predict son's height based on model and give confidence interval for his prediction: prediction

  • Also it will draw comparison of father's and son's height: comp

Underline model

  • For model building we used dataset from UsingR package - father.son (1078 measurements of a father's height and his son's height)
require(UsingR)
data(father.son)
  • The model is
heightModel <- lm(sheight ~ fheight, data = father.son)

\[ \ Height_{son} = 33.8866 + 0.5141 * Height_{father} \]

summary(heightModel)$coefficients

            Estimate Std. Error t value  Pr(>|t|)
(Intercept)  33.8866    1.83235   18.49 1.604e-66
fheight       0.5141    0.02705   19.01 1.121e-69

Underline model, part 2

Here is a residuals plot for this model plot of chunk unnamed-chunk-4