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Implications of foldr vs. foldl (or foldl')
...am reading, says to never use foldl and instead use foldl' . So I trust it.
7 Answers
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Is a view faster than a simple query?
...ueries.
Update: At least three people have voted me down on this one. With all due respect, I think that they are just wrong; Microsoft's own documentation makes it very clear that Views can improve performance.
First, simple views are expanded in place and so do not directly contribute to perf...
Syntax behind sorted(key=lambda: …)
I don't quite understand the syntax behind the sorted() argument:
9 Answers
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Peak detection in a 2D array
...m filter. Here is the result on your first dataset of 4 paws:
I also ran it on the second dataset of 9 paws and it worked as well.
Here is how you do it:
import numpy as np
from scipy.ndimage.filters import maximum_filter
from scipy.ndimage.morphology import generate_binary_structure, binary_ero...
How to lock orientation during runtime
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setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
Called on an activity, will lock it to landscape. Look for the other flags in the ActivityInfo class. You can lock it back to portrait or make it sensor/slider driven.
More info her...
Determining if an Object is of primitive type
I have an Object[] array, and I am trying to find the ones that are primitives. I've tried to use Class.isPrimitive() , but it seems I'm doing something wrong:
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Create a table without a header in Markdown
Is it possible to create a table without a header in Markdown?
11 Answers
11
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Build an iOS app without owning a mac? [closed]
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Let me tell you step by step few years back I was in same situation.
So We have two Phases
iPhone/iPad (iOS) app development
iPhone/iPad (iOS) app development and Publish to iTunes Store
1. iPhone/iPad (iOS) app development
So If you just want to develop iOS apps you don't want...
Extract traceback info from an exception object
Given an Exception object (of unknown origin) is there way to obtain its traceback? I have code like this:
5 Answers
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What is the most frequent concurrency issue you've encountered in Java? [closed]
...cy problems in Java. An example might be the classic deadlock or race condition or perhaps EDT threading bugs in Swing. I'm interested both in a breadth of possible issues but also in what issues are most common. So, please leave one specific answer of a Java concurrency bug per comment and vote ...