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“R cannot be resolved to a variable”? [duplicate]
In Eclipse, I've created a project from a source and now it shows errors - "R cannot be resolved to a variable". From what I found here, I had cleared and rebuilt the project, but still the R file doesn't appear in the /gen folder.
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Understanding “randomness”
...ments that the probability distributions shown in the last two images are known as the Irwin-Hall distribution
Thanks to Heike for her wonderful torn[] function
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How to add a new row to an empty numpy array
...ack
arr = np.array([])
arr = np.hstack((arr, np.array([1,2,3])))
# arr is now [1,2,3]
arr = np.vstack((arr, np.array([4,5,6])))
# arr is now [[1,2,3],[4,5,6]]
You also can use the np.concatenate function.
Cheers
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Android preferences onclick event
... deprecated. However the documentation says "[T]his functionality should now be found in the new PreferenceFragment class. If you are using PreferenceActivity in its old mode, the documentation there applies to the deprecated APIs here.", and PreferenceFragment.findPreference is not deprecated (as...
Is there something like RStudio for Python? [closed]
...hat I can see Rodeo 2.0 uses Electron. It still is a browser tool, only it now comes with its own browser to make it feel like its a native app. (It's also worth mentioning that it comes with a dependency on NodeJS.)
– Phillip
Jan 17 '17 at 10:21
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Signal handling with multiple threads in Linux
...al is received? Let's say I wrote a custom signal handler for SIGUSR1, and now I'm sending that signal to the process. The root thread will get that signal. Maybe it's in the middle of some function at that moment. What is going to happen?
– user500944
Jul 26 '...
What are CFI directives in Gnu Assembler (GAS) used for?
... procedure B which then calls a common procedure C. Procedure C fails. You now want to know who actually called C and then you may want to know who called B.
A debugger can unwind this stack by using the stack pointer (%rsp) and register %rbp, however it needs to know how to find them. That is whe...
How to serialize SqlAlchemy result to JSON?
...n json.JSONEncoder.default(self, obj)
return AlchemyEncoder
You can now call it with:
print json.dumps(e, cls=new_alchemy_encoder(False, ['parents']), check_circular=False)
To only expand SQLAlchemy fields called 'parents', for example.
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...Unicode 9.0 - and with no equivalent _general variant. People reading this now should probably use one of these newer collations instead of either _unicode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
u...
How to check String in response body with mockMvc
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@SotiriosDelimanolis is correct...I'm looking right now at the JSON returned by getContentAsString() that came from my @RestController-annotated controller.
– Paul
Dec 10 '14 at 18:57
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