滑动窗口求平均值

#include <stdio.h>

#define WINDOW_SIZE1 5   // 定义 motor1 的窗口大小
#define WINDOW_SIZE2 40  // 定义 motor2 的窗口大小

// 定义滑动窗口数据结构
typedef struct {
    int arr[WINDOW_SIZE2];  // 使用最大窗口大小来定义静态数组
    int window_size;
    int index;
    int current_size;
    int sum;  // 记录窗口内元素的总和
} SlidingWindow;

// 初始化滑动窗口
void init_window(SlidingWindow *window, int size) {
    window->window_size = size;
    window->index = 0;
    window->current_size = 0;
    window->sum = 0;
    for (int i = 0; i < WINDOW_SIZE2; i++) {
        window->arr[i] = 0;
    }
}

// 更新滑动窗口并计算新平均值
int update_window(SlidingWindow *window, int new_value) {


    // 更新窗口中的值
    window->arr[window->index] = new_value;
    window->index = (window->index + 1) % window->window_size;

    // 更新当前窗口大小
    if (window->current_size < window->window_size) {
        window->current_size++;
    }
    window->sum = 0;
    for (int i = 0; i < window->current_size; i++) {
        window->sum +=  window->arr[i];
    }
    return window->sum / window->current_size;
}




int main() {


    SlidingWindow window1;
    SlidingWindow window2;
    
    init_window(&window1, WINDOW_SIZE1);

	int data_arr1[10] = {1,2,3,4,5,6,7,8,9,10};
	int force1 = 0,force2=0;
    // 示例使用
	int i = 0,j =0,k=0;
   for(k = 0;k<10 ;k++)
   {
        force1 = update_window(&window1, data_arr1[i++]);
        printf("Motor%d initial force: %d\n", i,force1);
   
 

}
	/*
	   for(i = 0;i<10 ;i++)
   {

 
 
        force2 = update_window(&window2, data_arr2[j++]);
        printf("Motor2 initial force: %d\n", force2);
}
*/
    return 0;
}

对上面的改进版本

#include <stdio.h>
 
#define WINDOW_SIZE1 5   // 定义 motor1 的窗口大小
#define WINDOW_SIZE2 40  // 定义 motor2 的窗口大小
#define WINDOW_MAX   50  // 最大窗口大小

// 定义滑动窗口数据结构
typedef struct {
    int arr[WINDOW_MAX];  // 使用最大窗口大小来定义静态数组
    int window_size;
    int index;
    int current_size;
    int sum;  // 记录窗口内元素的总和
} SlidingWindow;

// 初始化滑动窗口
void init_window(SlidingWindow *window, int size) {
    window->window_size = size;
    window->index = 0;
    window->current_size = 0;
    window->sum = 0;
    for (int i = 0; i < WINDOW_MAX; i++) {
        window->arr[i] = 0;
    }
}

// 更新滑动窗口并计算新平均值
int update_window(SlidingWindow *window, int new_value) {
    // 如果窗口已满，减去将被替换掉的值
    if (window->current_size == window->window_size) {
        window->sum -= window->arr[window->index];
    } else {
        window->current_size++;
    }

    // 更新窗口中的值
    window->sum += new_value;
    window->arr[window->index] = new_value;
    window->index = (window->index + 1) % window->window_size;

    return window->sum / window->current_size;
}

int main() {
    SlidingWindow window1;
    SlidingWindow window2;
    
    init_window(&window1, WINDOW_SIZE1);
    init_window(&window2, WINDOW_SIZE2);

    int values1[] = {1, 2, 3, 4, 5, 6};
    int values2[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    printf("Updating window1:\n");
    for (int i = 0; i < sizeof(values1) / sizeof(values1[0]); i++) {
       int avg1 = update_window(&window1, values1[i]);
        printf("New value: %d, New average: %d\n", values1[i], avg1);
    }



    return 0;
}