38.Consider a generator function that generates 10 integers and use it to build an array (★☆☆) defgenerate(): for xin range(10): yield x Z = np.fromiter(generate(),dtype=float,count=-1) print(Z) 39.Create a vector of size 10 with values ranging from 0 to 1, both excluded (...
# Make an array of 120000 random bytes randomByteArray=bytearray(os.urandom(120000)) # translate into numpy array flatNumpyArray=np.array(randomByteArray) # Convert the array to make a 400*300 grayscale image(灰度图像) grayImage=flatNumpyArray.reshape(300,400) # show gray image cv.imshow...
num)...continue...print("Found an odd number", num) Found an even number 2 Found an odd number 3 Found an even number 4 Found an odd number 5 Found an even number 6 Found an odd number 7 Found an even number 8 Found an odd number 9 ...
self.stages = nn.ModuleList([self._make_stages(in_channels, out_channels, pool_size, norm_layer) for pool_size in pool_sizes]) self.bottleneck = nn.Sequential( nn.Conv2d(in_channels+(out_channels * len(pool_sizes)), out_channels, kernel_size=3, padding=1, bias=False), norm_layer(...
x : array_like;输入的数组,如果 axis是None,则 x必须是1-D或2-D。 ord : {non-zero int, inf, -inf, ‘fro’, ‘nuc’}, optional;范数的顺序,inf表示numpy的inf对象。 axis : {int, 2-tuple of ints, None}, optional keepdims : bool, optional t1a, t1b, t2a, t2b = -1, 3, -...
import numpy as np x = np.array([[0, 1], [2, 3]], np.int8) bytes = x.tobytes() # bytes is a raw array, which means it contains no info regarding the shape of x # let's make sure: we have 4 values with datatype=int8 (one byte per array's item), therefore the lengt...
For example, to create a 2D array of 8-bit values (suitable for use as a monochrome image): myarray = numpy.empty(shape=(H,W),dtype='u1') For an RGB image, include the number of color channels in the shape: shape=(H,W,3) You may also want to consider zero-initial...
42. Consider two random array A and B, check if they are equal 43. Make an array immutable (read-only) 44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates 45. Create random vector of size 10 and replace the maximum value by 0 ...
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MNIST训练数据集中的100条记录——https://raw.githubusercontent.com/makeyourownneuralnetwork/makeyourownneuralnetwork/master/mnist_dataset/ mnist_train_100.csv 如果浏览器显示的是数据而不是自动下载,可以使用“File → Save As ...”手动保存文件,或在浏览器上进行等效操作。