問題描述
我正在嘗試迭代使用 numpy.linspace 生成的值數組:
I'm trying to iterate an array of values generated with numpy.linspace:
slX = numpy.linspace(obsvX, flightX, numSPts)
slY = np.linspace(obsvY, flightY, numSPts)
for index,point in slX:
yPoint = slY[index]
arcpy.AddMessage(yPoint)
這段代碼在我的辦公室電腦上運行良好，但我今天早上坐在家里的另一臺機器上工作，出現了這個錯誤:
This code worked fine on my office computer, but I sat down this morning to work from home on a different machine and this error came up:
File "C: empgssm_arcpy.1.0.3.py", line 147, in AnalyzeSightLine
for index,point in slX:
TypeError: 'numpy.float64' object is not iterable
slX 只是一個浮點數組，腳本打印內容沒有問題——只是，顯然是迭代它們.關于導致它崩潰的任何建議以及可能的修復方法?
slX is just an array of floats, and the script has no problem printing the contents -- just, apparently iterating through them. Any suggestions for what is causing it to break, and possible fixes?
推薦答案
numpy.linspace() 為您提供一維 NumPy 數組.例如:
numpy.linspace() gives you a one-dimensional NumPy array. For example:
>>> my_array = numpy.linspace(1, 10, 10)
>>> my_array
array([ 1., 2., 3., 4., 5., 6., 7., 8., 9., 10.])
因此:
for index,point in my_array
無法工作.您將需要某種二維數組，其中包含兩個二維元素:
cannot work. You would need some kind of two-dimensional array with two elements in the second dimension:
>>> two_d = numpy.array([[1, 2], [4, 5]])
>>> two_d
array([[1, 2], [4, 5]])
現在你可以這樣做了:
>>> for x, y in two_d:
print(x, y)
1 2
4 5
這篇關于'numpy.float64' 對象不可迭代的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！