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How to loop through all but the last item of a list?
...with n+1 th item in the list you could also do with
>>> for i in range(len(list[:-1])):
... print list[i]>list[i+1]
note there is no hard coding going on there. This should be ok unless you feel otherwise.
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how to change any data type into a string in python
...have more than ascii characters and you will see error like ordinal not in range(128). This was the case for me while I was converting list of string in language other than English
I resolved it by using unicode(object)
sha...
Remove all occurrences of a value from a list?
... original list.
>>> import random, timeit
>>> a = list(range(5)) * 1000
>>> random.shuffle(a)
>>> b = a
>>> print(b is a)
True
>>> b = [x for x in b if x != 0]
>>> print(b is a)
False
>>> b.count(0)
0
>>> a.count(0)...
Dealing with float precision in Javascript [duplicate]
... integers up to something like 2^50. So, if you're working within a known range, you can scale your values to take advantage of the 50 bits (or whatever) of precision, instead of wasting the precision normally reserved for large numbers.
– rich remer
Dec 8 '15...
How should one go about choosing a default TCP/IP port for a new service?
...rare) port conflicts? Perhaps it is safer to use a port in the registered range that is unassigned or assigned to an obscure app.
– Kevin Wong
Sep 25 '08 at 15:21
4
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Advantages of Binary Search Trees over Hash Tables
...rve more memory than they need to.
For instance, if a hash function has a range R(h) = 0...100, then you need to allocate an array of 100 (pointers-to) elements, even if you are just hashing 20 elements. If you were to use a binary search tree to store the same information, you would only allocate ...
What is the id( ) function used for?
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But if you use numbers beyond the range of -5 to 256, you won't get the same id for fii variable.
– saurav
Jan 23 '18 at 5:49
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What is the difference between “int” and “uint” / “long” and “ulong”?
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@JacoPretorius Thats wrong. 8 bit int has a range from –128 to 127. The 9th bit represents 256. So with 8 bits you can represent all values up to 255 (9th val - 1). The range from -128 to 127 has a length of exactly 255. So there is no bit that holds the sign. All va...
How many double numbers are there between 0.0 and 1.0?
...tween powers of two, because there are many powers of two included in that range, and, also, one gets into the thorny issues of denormalized numbers. 10 of the 11 bits of the exponents cover the range in question, so, including denormalized numbers (and I think a few kinds of NaN) you'd have 1024 t...
Creating a zero-filled pandas data frame
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You can try this:
d = pd.DataFrame(0, index=np.arange(len(data)), columns=feature_list)
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