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Sorting arrays in NumPy by column
...on for the different proposals:
import numpy as np
table = np.random.rand(5000, 10)
%timeit table.view('f8,f8,f8,f8,f8,f8,f8,f8,f8,f8').sort(order=['f9'], axis=0)
1000 loops, best of 3: 1.88 ms per loop
%timeit table[table[:,9].argsort()]
10000 loops, best of 3: 180 µs per loop
import pandas as...
Why are Subjects not recommended in .NET Reactive Extensions?
...GetMessages()
{
//Do some work here that gets messages from a queue,
// file system, database or other system that cant push
// new data at us.
//
//This may return an empty result when no new data is found.
}
}
The reason I really don't like...
Escape double quotes in parameter
...I cannot quickly reproduce the symptoms: if I try myscript '"test"' with a batch file myscript.bat containing just @echo.%1 or even @echo.%~1, I get all quotes: '"test"'
Perhaps you can try the escape character ^ like this: myscript '^"test^"'?
...
Reading 64bit Registry from a 32bit application
...
Nice hint, it allows to manipulate the registry in a batch. Use reg.exe /? to get more info...
– Matt
Aug 29 '18 at 6:47
add a comment
...
What is a stream?
...e the already read data is deleted. A one-way-ticket...or basically just a queue without storing persistence.
So do we need queues? You decide.
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What algorithm gives suggestions in a spell checker?
...pelled word.
If Levensthein Distance <= 3, store the word in a Priority Queue.
If two words have same edit distance, the one with higher frequency is grater.
Print the top 10 items from Priority Queue.
Optimization
You can eleminate the words in subtree of current node if the edit distance o...
Improving bulk insert performance in Entity framework [duplicate]
...rate round trip to the database. Awesome isn't it? Even DataSets supported batch processing. Check this article for some workaround. Another workaround can be using custom stored procedure accepting table valued parameter but you need raw ADO.NET for that.
...
Java: notify() vs. notifyAll() all over again
...air. i.e. each call to notify might wake the same thread again (the thread queue in the monitor is NOT FAIR or FIFO). However the scheduler is guaranteed to be fair. Which is why in most cases where you have more than 2 threads you should prefer notifyAll.
– Yann TM
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How to find time complexity of an algorithm
...y: accessing any element
fixed-size stack: push and pop methods
fixed-size queue: enqueue and dequeue methods
4. O(n) Linear Time
An algorithm is said to run in linear time if its time execution is directly proportional to the input size, i.e. time grows linearly as input size increases.
Consider t...
How to configure MongoDB Java driver MongoOptions for production use?
...et db connection" exception. It will throw this exception once this thread queue exceeds the threadsAllowedToBlockForConnectionMultiplier value. For example, if the connectionsPerHost is 10 and this value is 5 up to 50 threads can block before the aforementioned exception is thrown.
If you expect b...