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python 3在float32中追加数组?

[英]Python 3 append array in float32?

当我遍历数据,.csv文件并将每行的值分配给数组元素时,//我需要将值设置为float32,该怎么做? 这有效,但是它们不是我想要的类型吗? 底图抱怨,谢谢!

csvReader = csv.reader(stores)
header = next(csvReader, None)
latIndex = header.index("lati")
lonIndex = header.index("long")

# Make an empty list
coordList = []

# Loop through the lines in the file and get each coordinate
for row in csvReader:
    lat = row[latIndex]
    lon = row[lonIndex]
    result = (lat, lon)
    coordList.append(result)    # how to make it float32 ?

假设您的意思是numpy.float32(香草python中没有这样的名称):

lat = numpy.float32(row[latIndex])
lon = numpy.float32(row[lonIndex])

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