**30**wrote:

Hello everybody,

i need some help with statistical anylsis of biological properties. Assume, that for some biological properties A, B, C and D, we have their occurence given as m/n-ratios. We have these data for three example species S1 to S3 in a table like shown below (My real data set contains 14 properties for over 100 species):

A | B | C | D | |

S1 | 0.7 | 0.3 | 0.25 | NA |

S2 | NA | 0.4 | 0.1 | 0.6 |

S3 | 0.3 | NA | NA | 0.3 |

As seen above, in some cases no data is available (denoted as NA), so my question now is how to define the quartiles Q1 and Q3 and the Median Q2 for a certain property? Can somebody explain to me how to handle this for property A? Unfortunately i never encountered this case with non-available data.

Best regards

**30k**• written 4.6 years ago by thefirstrealace •

**30**