data['col1'] = int(ua) * np.ones(num)
data['col2'] = np.random.uniform(low_inc / 2, med_inc * 2, num)
data['col3'] = np.random.uniform(0, 6, num)
data['col4'] = np.random.randint(100, 5000, num)
data['col5'] = np.random.randint(100, 500, num)
data['col6'] = np.random.randint(0, 2, num).astype(np.bool)
data['col7'] = np.random.randint(0, 2, num).astype(np.bool)
data['col8'] = np.random.randint(100, 5000, num)
data['col9'] = np.random.randint(100, 5000, num)
data['col10'] = np.random.randint(100, 5000, num)
print(data)
specify dtype of each object in a python numpy array