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Input and output numpy arrays to h5py

I have a Python code whose output is a sized matrix, whose entries are all of the type float . If I save it with the extension .dat the file size is of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I ...
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Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?

When looking at the documentation, I hardly see any big difference. Both "value" and "object" are of type id , so can be any object. Key is once a string, and in the other case an id. One of them seems to retain the object, and the other don't. What else? Which one is for what case? ...
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Superiority of unnamed namespace over static?

How are unnamed namespaces superior to the static keyword? 2 Answers 2 ...
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Handling a Menu Item Click Event - Android

I want to create an intent that starts a new activity once a Menu Item is clicked, but I'm not sure how to do this. I've been reading through the android documentation, but my implementation isn't correct..and some guidance in the right direction would help. I've listed my code below and commented o...
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How do you make lettered lists using markdown?

Markdown allows ordered lists using numbers. How can I instead get an ordered list using letters ? i.e. 5 Answers ...
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Unicode, UTF, ASCII, ANSI format differences

... list: "Unicode" isn't an encoding, although unfortunately, a lot of documentation imprecisely uses it to refer to whichever Unicode encoding that particular system uses by default. On Windows and Java, this often means UTF-16; in many other places, it means UTF-8. Properly, Unicode refers to th...
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Django Admin - Disable the 'Add' action for a specific model

I have a django site with lots of models and forms. I have many custom forms and formsets and inlineformsets and custom validation and custom querysets. Hence the add model action depends on forms that need other things, and the 'add model' in the django admin throughs a 500 from a custom queryset. ...
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What does Class mean in Java?

My question is as above. Sorry, it's probably a duplim>catm>e but I couldn't find an example with the <?> on the end. 6...
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How to send POST request?

... If you really want to handle with HTTP using Python, I highly recommend Requests: HTTP for Humans. The POST quickstart adapted to your question is: >>> import requests >>> r = requests.post("http://bugs.python.org", data={'number': 12524, 'type': 'issue', 'action': 'show'...
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How to show and update echo on same line

... Well I did not read correctly the man echo page for this. echo had 2 options that could do this if I added a 3rd escape character. The 2 options are -n and -e. -n will not output the trailing newline. So that saves me from going to a new line each time I e...