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我是一名PHP開發人員並試圖在PYTHON中實現以下內容 我正在嘗試使用numpy數組執行一些操作。 我的輸入來自多列CSV文件。所以,我讀文件,並試圖爲每列需要將CSV文件的每一列轉換爲numpy數組的幫助
格式我確實需要如下生成一個numpy的陣列
[[ 3.52173777]
[ 0.46194453]
[ 8.6932777 ]
[ 15.18824896]
[ 2.15025082]
[ 11.5823697 ]
[ 11.23766709]
[ 17.13780022]
[ 19.7389633 ]
[ 10.1521166 ]
[ 11.68934389]
[ 13.22986065]
[ 9.3644021 ]
[ 16.38857516]
[ 13.30463986]
[ 9.8830318 ]
[ 18.68062207]
[ 13.92522195]]
但格式我能夠產生是
['124.4444444' '123.6203091' '139.659803' '171.4285714' '188.6051081'
'185.0220264' '163.141994' '119.0839695' '124.3027888' '160.6425703'
'177.7777778' '154.8387097' '120.3438395' '149.8127341' '110.8545035'
'111.8012422' '146.7889908' '151.4195584' '148.9361702' '163.1067961'
'111.747851' '112.3110151' '174.1935484' '178.5123967' '144.8275862'
'176.4705882' '173.9130435' '117.1548117' '111.4285714' '145.2145215'
'169.0140845' '151.8987342' '151.4726508' '106.5989848' '116.2444113'
'169.8113208' '156.5217391' '188.2352941' '190.8548708' '122.3449448'
'118.4210526' '173.9130435' '162.1621622' '152.866242' '181.4744802'
'130.2170284' '126.2135922' '151.5151515' '154.0436457' '174.1654572]
我的代碼,我正在嘗試與
csvfile1 = sys.argv[1]
A_list = np.array([])
B_list = np.array([])
with open(csvfile1, newline='') as csvfile:
spamreader = csv.reader(csvfile, delimiter=',', lineterminator='\n')
for row in spamreader:
A_list = np.append(A_list, row[0])
B_list = np.append(B_list, row[1])
print(A_list)
print(B_list)
什麼是您的CSV文件實際上是什麼樣子? – acdr
查看['np.genfromtxt'](http://docs.scipy.org/doc/numpy-1.10.0/reference/generated/numpy.genfromtxt.html)和['np.loadtxt']( http://docs.scipy.org/doc/numpy-1.10.0/reference/generated/numpy.loadtxt.html#numpy.loadtxt) –
對於數值的文件,'np.loadtxt'可能是你需要的。 –