Microgrow


It is of interest to develop a model for population growth, which may later be used for various purposes. Present data concerns growth of bacteria in a liquid medium. It is very difficult, if not impossible, to count the population of bacterial cells. Hence the same is measured indirectly through optical density of the medium. As population size increases, the medium becomes more opaque. Common model used to describe population growth is logistic. 


datasets

Collection of datasets as prepared by Profs. A.P. Gore, S.A. Paranjape, and M.B. Kulkarni of Department of Statistics, Poona University, India. With their permission, first letter of their names forms the name of this package, the package has been built by me and made available for the benefit of R users. This collection requires a rich class of models and can be a very useful building block for a beginner.

Prabhanjan Tattar

100 Data Sets for Statistics Education

Microgrow function

A data frame with 61 observations on the following 2 variables.
  <dl>
    <dt><code>Time</code></dt><dd>Time since inoculation</dd> <dt><code>OD</code></dt><dd>Optical density (indicator of growth)</dd> </dl> 

Format

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Microgrow: Fit sigmoidal model to bacterial growth

Description

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