/// <summary>Constructor</summary>
/// <param name="xproperty">x property</param>
/// <param name="x">x values.</param>
/// <param name="y">y values.</param>
public LinearInterpolationFunction(string xproperty, double[] x, double[] y)
{
XProperty = xproperty;
XYPairs = new XYPairs();
XYPairs.X = x;
XYPairs.Y = y;
}
/// <summary>Constructor</summary>
public LinearInterpolationFunction(double[] x, double[] y)
{
XYPairs = new XYPairs()
{
X = x, Y = y
};
}
/// <summary>Constructor</summary>
/// <param name="xProperty">name of the x property</param>
/// <param name="x">x values.</param>
/// <param name="y">y values.</param>
public LinearInterpolationFunction(string xProperty, double[] x, double[] y)
{
VariableReference XValue = new VariableReference();
XValue.VariableName = xProperty;
XYPairs = new XYPairs();
XYPairs.X = x;
XYPairs.Y = y;
}
/// <summary>Linint3hrlies the temporary.</summary>
/// <param name="tmax">The tmax.</param>
/// <param name="tmin">The tmin.</param>
/// <param name="ttFn">The tt function.</param>
public double Linint3hrlyTemp(double tmax, double tmin, XYPairs ttFn)
{
// --------------------------------------------------------------------------
// Eight interpolations of the air temperature are
// calculated using a three-hour correction factor.
// For each air three-hour air temperature, a value
// is calculated. The eight three-hour estimates
// are then averaged to obtain the daily value.
// --------------------------------------------------------------------------
// Local Variables
double tot = 0.0; // sum_of of 3 hr interpolations
for (int period = 1; period <= num3hr; period++)
{
// get mean temperature for 3 hr period (oC)
double tmean_3hour = temp_3hr(tmax, tmin, period);
tot = tot + ttFn.ValueIndexed(tmean_3hour);
}
return(tot / (double)num3hr);
}
