argmin¶
argmin
该OP沿 axis
计算输入 x
的最小元素的索引。
参数¶
x (Variable) - 输入的多维
Tensor
,支持的数据类型:float32、float64、int8、int16、int32、int64。axis (int,可选) - 指定对输入Tensor进行运算的轴,
axis
的有效范围是[-R, R),R是输入x
的Rank,axis
为负时与axis
+R 等价。默认值为0。
返回¶
Tensor
,数据类型int64
返回类型¶
Variable
代码示例¶
import paddle.fluid as fluid
import numpy as np
in1 = np.array([[[5,8,9,5],
[0,0,1,7],
[6,9,2,4]],
[[5,2,4,2],
[4,7,7,9],
[1,7,0,6]]])
with fluid.dygraph.guard():
x = fluid.dygraph.to_variable(in1)
out1 = fluid.layers.argmin(x=x, axis=-1)
out2 = fluid.layers.argmin(x=x, axis=0)
out3 = fluid.layers.argmin(x=x, axis=1)
out4 = fluid.layers.argmin(x=x, axis=2)
print(out1.numpy())
# [[0 0 2]
# [1 0 2]]
print(out2.numpy())
# [[0 1 1 1]
# [0 0 0 0]
# [1 1 1 0]]
print(out3.numpy())
# [[1 1 1 2]
# [2 0 2 0]]
print(out4.numpy())
# [[0 0 2]
# [1 0 2]]