函数原型:
set_printoptions(precision=None, threshold=None, edgeitems=None, linewidth=None, suppress=None, nanstr=None, infstr=None)
参数说明:
precision : int, optional,float输出的精度,即小数点后维数,默认8( Number of digits of precision for floating point output (default 8))
threshold : int, optional,当数组数目过大时,设置显示几个数字,其余用省略号(Total number of array elements which trigger summarization rather than full repr (default 1000).)当设置打印显示方式threshold=np.nan,意思是输出数组的时候完全输出,不需要省略号将中间数据省略
edgeitems : int, optional,边缘数目(Number of array items in summary at beginning and end of each dimension (default 3)).
linewidth : int, optional,The number of characters per line for the purpose of inserting line breaks (default 75).
suppress : bool, optional,是否由科学计数法压缩表示浮点数(Whether or not suppress printing of small floating point values using scientific notation (default False).)当suppress=True,表示小数不需要以科学计数法的形式输出.
nanstr : str, optional,String representation of floating point not-a-number (default nan).
infstr : str, optional,String representation of floating point infinity (default inf).
eg:
np.set_printoptions(precision=4) #控制输出的小数点个数是4
np.array([1.123456789])
[ 1.1235]
np.set_printoptions(threshold=5) #控制输出的值的个数为6,其余以...代替
np.arange(10)
[0 1 2 ..., 7 8 9]
np.set_printoptions(threshold=np.nan) #控制台输出所有的值,不需要省略号
np.arange(10)
[0 1 2 3 4 5 6 7 8 9]
eps = np.finfo(float).eps
x = np.arange(4.)
x**2 - (x + eps)**2
array([ -4.9304e-32, -4.4409e-16, 0.0000e+00, 0.0000e+00])
np.set_printoptions(suppress=True)
x**2 - (x + eps)**2
array([-0., -0., 0., 0.])
参考来源1:
————————————————
版权声明:本文为CSDN博主「寻梦梦飞扬」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。
原文链接:https://blog.csdn.net/weixin_41043240/article/details/79721114
参考来源2:
————————————————
原文链接:https://blog.csdn.net/weixin_43584807/article/details/103093874