Calculate the percentage of missing morphometric data

Description

Calculates the percentage of morphometric data points that have been replaced with 'NA' by functions such as missing.data, byclade or obliterator from LOST. Used to verify the amount of missing data inputted into complete morphometric matrices.

Usage

how.many.missing(x)

Arguments

Value

Returns the percentage (as a decimal) of missing data points present in x

Author(s)

J. Arbour and C. Brown

References

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.

See Also

missing.data

Examples

data(crocs)

## remove 30% of data points
croc.miss<-missing.data(crocs,0.3)

## should return 0.3
how.many.missing (croc.miss)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(LOST)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/LOST/how.many.missing.Rd_%03d_medium.png", width=480, height=480)
> ### Name: how.many.missing
> ### Title: Calculate the percentage of missing morphometric data
> ### Aliases: how.many.missing
> 
> ### ** Examples
> 
> data(crocs)
> 
> ## remove 30% of data points
> croc.miss<-missing.data(crocs,0.3)
> 
> ## should return 0.3
> how.many.missing (croc.miss)
[1] 0.3000776
> 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>