np mean 2nd dimension

Explanation of np.mean() in C

The np.mean() function is not a standard function in the C programming language. It appears that you are referring to a function from the NumPy library in Python, which is used for numerical computations. NumPy provides a mean() function that calculates the arithmetic mean of an array or a specific axis of a multi-dimensional array.

To calculate the mean of an array in C, you would need to implement your own function. Here's an example of how you can calculate the mean of an array in C:

#include <stdio.h>

float calculateMean(int arr[], int size) {
    int sum = 0;
    for (int i = 0; i < size; i++) {
        sum += arr[i];
    }
    return (float)sum / size;
}

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    int size = sizeof(arr) / sizeof(arr[0]);
    float mean = calculateMean(arr, size);
    printf("Mean: %.2f\n", mean);
    return 0;
}

In this example, the calculateMean() function takes an array arr and its size size as parameters. It iterates over the elements of the array, calculates the sum, and then divides the sum by the size to get the mean. The main() function demonstrates how to use the calculateMean() function with a sample array.

Please note that this is a basic example, and you may need to modify it based on your specific requirements.