np.genfromtxt(r'C:\Users\Yummy\Desktop\julei\julei\iris.data', delimiter=' ', max_rows=4)

As an AI language model, I cannot execute external files on my own. However, I can provide you with an explanation of what the given code does.

The code uses the NumPy library's genfromtxt function to read data from a file located at the specified file path. In this case, the file is 'iris.data' located on the desktop of the current user. The delimiter parameter is set to a space character to indicate that the data is separated by spaces. The max_rows parameter is set to 4, indicating that only the first 4 rows of the data will be read.

The output of this function call will be a NumPy array containing the first 4 rows of the 'iris.data' file.