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
mix.Read(file,eps=1e-6)
Arguments
file
a file name
eps
the epsilon to be used for checking null values.
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.
tabular
rll
tab
-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.
Details
The data files must have the adequate structure:
1
{the first row with a title of the data set,}
2{the second row with variables names}
3{the data set in a matrix, rows as cases, variables in columns
with the firs colum comprising cases labels.}
