mixRead: Reads a data file in a mixR format

Description Usage Arguments Details Value See Also Examples

Description

Reads a data file, which is formatted in a simple compositional file including the first row with title, the second with data labels and afterwards the matrix with the data itself. In the first column of the matrix are cases labels. This is the format used in the mixR package.

Usage

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mix.Read(file,eps=1e-6)
          

Arguments

file

a file name

eps

the epsilon to be used for checking null values.

Details

The data files must have the adequate structure:

A mixture object 'm' consists of m\$tit the title, m\$mat the matrix with the data, m\$sum the value of the rows total, if constant and m\$sta the status of the mixture object with values:

-2 - matrix contains negative elements,
-1 - zero row sum exists,
0 - matrix contains zero elements,
1 - matrix contains positive elements, rows with different row sum(s),
2 - matrix with constant row sum and
3 - closed mixture, the row sums are all equal to 1.

Value

A mixture object as a data frame with a title, row total, if constant, status (-2, -1, 0, 1, 2 or 3 – see above) and class attributes and the data matrix.

See Also

read.geoeas read.geoEAS read.table

Examples

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## Not run: 
  mix.Read("GLACIAL.DAT")
  mix.Read("ACTIVITY.DAT")

## End(Not run)

compositions documentation built on Jan. 5, 2022, 5:09 p.m.