public Mapper(IHostEnvironment env, SequentialForecastingTransformBase <TInput, TState> parent, DataViewSchema inputSchema)
{
Contracts.CheckValue(env, nameof(env));
_host = env.Register(nameof(Mapper));
_host.CheckValue(inputSchema, nameof(inputSchema));
_host.CheckValue(parent, nameof(parent));
if (!inputSchema.TryGetColumnIndex(parent.InputColumnName, out _inputColumnIndex))
{
throw _host.ExceptSchemaMismatch(nameof(inputSchema), "input", parent.InputColumnName);
}
var colType = inputSchema[_inputColumnIndex].Type;
if (colType != NumberDataViewType.Single)
{
throw _host.ExceptSchemaMismatch(nameof(inputSchema), "input", parent.InputColumnName, "Single", colType.ToString());
}
_parent = parent;
_parentSchema = inputSchema;
State = (ForecastingStateBase)_parent.StateRef;
_dontFetchSrcValue = false;
}
private protected sealed override void InitializeStateCore(bool disk = false)
{
Parent = (SequentialForecastingTransformBase <TInput, TState>)ParentTransform;
Host.Assert(WindowSize >= 0);
InitializeForecaster();
}
