/// <summary>
/// 输入检查
/// </summary>
/// <param name="inputOne">输入1</param>
/// <param name="inputTwo">输入2</param>
/// <exception cref="ArgumentException">输入为Null或维度不相同或维度为0</exception>
private static void inputCheck(IDimensionValueBean inputOne, IDimensionValueBean inputTwo)
{
//null值检查 维度相同检查
if (null == inputOne || null == inputTwo ||
inputOne.GetSumDimensionNumber() != inputTwo.GetSumDimensionNumber() ||
0 >= inputOne.GetSumDimensionNumber()
)
{
throw new ArgumentException();
}
}
/// <summary>
/// 计算两个多维数据之间的欧几里得距离
/// </summary>
/// <param name="inputOne">输入1</param>
/// <param name="inputTwo">输入2</param>
/// <returns>欧几里得距离</returns>
/// <exception cref="ArgumentException">输入为Null或维度不相同或维度为0</exception>
internal static double CalculateDistanceByEuclidean
(IDimensionValueBean inputOne, IDimensionValueBean inputTwo, bool ifCheck = true)
{
if (ifCheck)
{
inputCheck(inputOne, inputTwo);
}
double returnValue = 0.0d;
int tempSize = inputOne.GetSumDimensionNumber();
//维度距离累计
for (int tempIndex = 0; tempIndex < tempSize; tempIndex++)
{
returnValue = returnValue + Math.Pow
((inputOne.GetValueAtDimensionIndex(tempIndex) -
inputTwo.GetValueAtDimensionIndex(tempIndex)), 2.0D);
}
//开根号
returnValue = Math.Pow(returnValue, 0.5D);
return(returnValue);
}
/// <summary>
/// 比较两个多维数据封装是否相同
/// </summary>
/// <param name="inputOne">输入1</param>
/// <param name="inputTwo">输入2</param>
/// <param name="ifCheck">是否进行输入检查</param>
/// <returns>是否相同</returns>
/// <exception cref="ArgumentException">输入为Null或维度不相同或维度为0</exception>
internal static bool IfDDimensionIsEqula
(IDimensionValueBean inputOne, IDimensionValueBean inputTwo, bool ifCheck = true)
{
if (ifCheck)
{
inputCheck(inputOne, inputTwo);
}
bool returnValue = true;
int sumNumber = inputOne.GetSumDimensionNumber();
//检查各维度
for (int tempIndex = 0; tempIndex < sumNumber; tempIndex++)
{
//当出现不等时
if (CompareResultEnum.Equal != CompareDoulbe
(inputOne.GetValueAtDimensionIndex(tempIndex),
inputTwo.GetValueAtDimensionIndex(tempIndex)))
{
returnValue = false;
}
}
return(returnValue);
}
/// <summary>
/// 输入检查
/// </summary>
/// <param name="inputValue"></param>
private void inputCheck(IDimensionValueBean inputValue, bool ifCheckDimensionNumber = true)
{
//若需检查维度数
if (ifCheckDimensionNumber)
{
if (null == inputValue ||
inputValue.GetSumDimensionNumber() != nodeCount ||
0 >= inputValue.GetSumDimensionNumber())
{
throw new ArgumentException();
}
}
else
{
if (null == inputValue ||
0 >= inputValue.GetSumDimensionNumber())
{
throw new ArgumentException();
}
}
}