Estimates missing data using regression on a designated size variable. Any values of the size variable missing are estimated with the variable best correlated with size.
A n X m matrix of morphometric data with n specimens and m variables, containing some percentage of missing values input as NA
The number of the column in which the independant size variable is stored. This column will be used to estimate missing values in the other columns.
Returns a n X m matrix containing both the original morphometric values as well as estimates for all previously missing values.
J. Arbour and C. Brown
Brown, C., Arbour, J. and Jackson, D. 2012. Testing of the Effect of Missing Data Estimation and Distribution in Morphometric Multivariate Data Analyses. Systematic Biology 61(6):941-954.
1 2 3 4 5 6 7 8 9
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.