我有一些数据的csv文件,这里是一个示例:打印NumPy的阵列上头
Alcohol,Malice acid,Ash,Alcalinity of ash,Magnesium,Total phenols,Flavanoids,Nonflavanoid phenols,Proanthocyanins,Color intensity,Hue,OD280/OD315 of diluted wines,Proline
1,14.23,1.71,2.43,15.6,127,2.8,3.06,0.28,2.29,5.64,1.04,3.92
1,13.2,1.78,2.14,11.2,100,2.65,2.76,0.26,1.28,4.38,1.05,3.4
1,13.16,2.36,2.67,18.6,101,2.8,3.24,0.3,2.81,5.68,1.03,3.17
我在csv文件读取和我的数组转换为3个numpy的数组:
wine_data_file = open("wine.csv","r")
wine_data_reader = csv.reader(wine_data_file, delimiter=",")
wine_data = []
wine_labels = []
wine_columns = []
#Read each line of wine.csv
count = 0
for row in wine_data_reader:
if count <= 0:
wine_columns += [row[1:]]
else:
wine_labels += [int(row[0])]
wine_data += [map(float,row[1:])]
count = count + 1
wine_data = np.array(wine_data,dtype=float)
wine_labels = np.array(wine_labels)
wine_columns = np.array(wine_columns)
这些numpy数组将包含列标题,标签(每行的第一个数字)和数据。
我能够把它打印出来的结果:
print wine_data[wine_labels == 1]
这将让我的每一行中wine_data是具有1标签(酒精),但我不能做同样与此:
print wine_data[wine_columns == "Hue"]
我的问题是,如何能够得到我在Hue的numpy数组中的每个索引。
期望的结果:
[[5.64],[4.38],[5.68]]
你试过了什么?请给我们一些信息! – Boggartfly
我想你想要熊猫。 –
@PauloScardine我必须使用一个numpy数组,它用于学校作业。 –