output_coefficient_matrix_create: Create an output coefficient matrix
Description
Create an output coefficient matrix from the input flow matrix or a symmetric
input-output table.
Usage
output_coefficient_matrix_create(data_table, total = "tfu", digits = NULL)
Value
An output coefficient matrix of data.frame class.
The column names are ordered, and the row names are in the
first, auxiliary metadata column.
Arguments
data_table
A symmetric input-output table, a use table,
a margins or tax table retrieved by the iotable_get.
In case you use type="tfu" you need to input a
full iotable, create by the iotable_get, because
the final demand column is in the second quadrant of the IOT.
total
The output='total' (or CPA_TOTAL, depending on the
names in your table, default) returns the output coefficients
for products (intermediates) while the final_demand returns output
coefficients for final demand. See
Eurostat Manual of Supply, Use and Input-Output Tables
p495 and p507.
digits
An integer showing the precision of the technology matrix in
digits. Default is NULL when no rounding is applied.
Details
The output coefficients may be interpreted as the market shares of products
in total output. If there are zero values in present, they will be changed to
0.000001 and you will get a warning. Some analytical equations cannot be
solved with zero elements. You either have faulty input data, or you have
to use some sort of data modification to carry on your analysis.