If you don’t care which version of Plotly you install, just use pip. pip install plotly is an easy way to install the latest stable package for Plotly from PyPi. pip is a useful package and dependency management tool, which makes these things easy, but it should be noted that Anaconda’s conda tool will do the same thing. pip will install … Read more
If you want the result as the nearest binary floating point number use float: If you want the result stored exactly use Decimal instead of float:
If you want the effect of a nested for loop, use: If you just want to loop simultaneously, use: Note that if x and y are not the same length, zip will truncate to the shortest list. As @abarnert pointed out, if you don’t want to truncate to the shortest list, you could use itertools.zip_longest. UPDATE Based on the request for “a … Read more
Use pygame.KEYDOWN and pygame.KEYUP to detect if a key is physically pressed down or released. You can activate keyboard repeat by using pygame.key.set_repeat to generate multiple pygame.KEYDOWN events when a key is held down, but that’s rarely a good idea. Instead, you can use pygame.key.get_pressed() to check if a key is currently held down:
Try this testing code and pay attention to np.array([1,2,3], dtype=np.float64). It seems self.svm.decision_function(vectors) returns 1d array instead of 2d. If you replace [1,2,3] to [[1,2,3], [4,5,6]] everything will be ok. Output: So, what your vectors are?
You have pylab.ylim: Note: The command has to be executed after the plot! Update 2021Since the use of pylab is now strongly discouraged by matplotlib, you should instead use pyplot:
Try to reinstall the pip as follows :
You need to change the brackets in The_End.insert[x + 1, y] to parenthesis. It’s good practice in Python to use lowercase variable names. Uppercase is generaly used for classes.
[]: Lists and indexing/lookup/slicing Lists: [], [1, 2, 3], [i**2 for i in range(5)] Indexing: ‘abc'[0] → ‘a’ Lookup: {0: 10}[0] → 10 Slicing: ‘abc'[:2] → ‘ab’ (): Tuples, order of operations, generator expressions, function calls and other syntax. Tuples: (), (1, 2, 3) Although tuples can be created without parentheses: t = 1, 2 → (1, 2) Order of operations: (n-1)**2 Generator expression: (i**2 for i in range(5)) Function or method calls: print(), int(), range(5), ‘1 2’.split(‘ … Read more
Pickle serializes a single object at a time, and reads back a single object – the pickled data is recorded in sequence on the file. If you simply do pickle.load you should be reading the first object serialized into the file (not the last one as you’ve written). After unserializing the first object, the file-pointer … Read more