python if array
You could use the size attribute. a = np.asarray(a) # converts it to an array if it's not an array. if a.size == 0: # it's empty! This works also for lists ..., The only way to be certain is to benchmark well. (this also depends .... I believe this is the fastest way to know if a chosen value is in an array.
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 python if array 相關參考資料
python - Check if item is in an array list - Stack Overflow
Assuming you mean "list" where you say "array", you can do if item in my_list: # whatever. https://stackoverflow.com python - Check if list or array element is empty - Stack Overflow
You could use the size attribute. a = np.asarray(a) # converts it to an array if it's not an array. if a.size == 0: # it's empty! This works also for lists ... https://stackoverflow.com python - Fastest way to check if a value exist in a list - Stack ...
The only way to be certain is to benchmark well. (this also depends .... I believe this is the fastest way to know if a chosen value is in an array. https://stackoverflow.com python - How do you have if statements with a numpy array? - Stack ...
You want to do a comparison like all(i < 15 for i in r1[0]) all(i == 15 for i in r1[0]). so you could do: for row in len(r1): if all(i < 15 for i in r1[row]): ... https://stackoverflow.com python - How to check if array is not empty? - Stack Overflow
There's no mention of numpy in the question. If by array you mean list, then if you treat a list as a boolean it will yield True if it has items and ... https://stackoverflow.com Python - If array is in range of other array - Stack Overflow
This will create tuples of price[i],budget[i] and then for each of these tuples we check that price[i] is in range(budget[i]) . Nevertheless, you can ... https://stackoverflow.com python - if else in a list comprehension - Stack Overflow
Do-something if <condition> , else do-something else. .... Python's conditional expression is a if C else b and can't be used as: [a for i in items if ... https://stackoverflow.com Python array elements in if statement - Stack Overflow
array = [1, 2, 3, 4, 5] for item in array: if item >= 3: print("yes") else: ... Python strictly follows indentation , meaning that it will only execute codes ... https://stackoverflow.com Python Arrays (With Examples) - Programiz
跳到 How to create an array? - Here, we created an array of float type. The letter 'd' is a type code. This determines the type of the array during creation. https://www.programiz.com python: how to identify if a variable is an array or a scalar ...
Previous answers assume that the array is a python standard list. As someone who uses numpy often, I'd recommend a very pythonic test of: https://stackoverflow.com |