Tuesday, 15 May 2012

Exploratory data analysis Techniques

  Manoj       Tuesday, 15 May 2012

There are a number of tools that are useful for EDA, but EDA is characterized more by the attitude taken than by particular techniques.
Typical graphical techniques used in EDA are:
  • Box plot
  • Histogram
  • Multi-vari chart
  • Run chart
  • Pareto chart
  • Scatter plot
  • Stem-and-leaf plot
  • Odds ratio
  • Chi-square
  • Multidimensional scaling
  • Targeted projection pursuit
  • Principal Component Analysis
Typical quantitative techniques are:
  • Median polish
  • the Trimean
  • Letter values
  • Resistant line
  • Resistant smooth
  • Rootogram
  • Ordination
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