private SpssWriter(SavFileWriter output, ICollection <Variable> variables, SpssOptions options = null)
{
_output = output;
_variables = variables.ToList();
_options = options ?? _options;
WriteFileHeader();
}
/// <summary>
/// Creates a spss writer
/// </summary>
/// <param name="output">The binary stream to write to</param>
/// <param name="variables">The variable collection to use</param>
/// <param name="options"></param>
public SpssWriter(Stream output, ICollection <Variable> variables, SpssOptions options = null)
: this(new SavFileWriter(output), variables, options)
{
}