C# 分段線性插值函式
由於專案需要，需要將資料採集得到的點數轉化為固定點數，使用分段線性插值其實現程式碼如下：
///<summary>
///分段線性插值，將一組數插值為所需點數
///</summary>
///<param name="dataIn">待插值的資料陣列</param>
///<param name="n">插值點數</param>
///<returns>插值後的資料陣列</returns>
public static double[] Interpolation(double[] dataIn,int n)
{
double[] dataOut = new
int lenIn = dataIn.Length;
double[] a = new double[lenIn];
double[] divIn = new double[lenIn];
double[] divOut = new double[n];
divIn[0] = 0;
for (int i = 1; i < lenIn; i++)
{
divIn[i] = divIn[i - 1] + 1;
}
divOut[0] = 0;
for (int i = 1; i < n; i++)
{
divOut[i] = divOut[i - 1] + lenIn / Convert
}
int k = 0;
for (int i = k; i < n; i++)
{
for (int j = 0; j < lenIn - 1; j++)
{
if (divOut[i] >= divIn[j] && divOut[i] < divIn[j + 1])
{
dataOut[i] = (dataIn[j + 1] - dataIn[j]) * (divOut[i] - divIn[j]) / (divIn[j + 1] - divIn[j]) + dataIn[j];
k = i;
}
}
}
return dataOut;
}