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Append an object to a list in R in amortized constant time, O(1)?
If I have some R list mylist , you can append an item obj to it like so:
17 Answers
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git rebase: “error: cannot stat 'file': Permission denied”
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When I see this on my machine, it's worse than just a "some process has the file open". The actual ownership of the file gets jacked up to the point where I (running as administrator) can only access it after rebooting.
Nearest I can tell, II...
Should you commit .gitignore into the Git repos?
...cally do commit .gitignore. In fact, I personally go as far as making sure my index is always clean when I'm not working on something. (git status should show nothing.)
There are cases where you want to ignore stuff that really isn't project specific. For example, your text editor may create automa...
Codesign error: Provisioning profile cannot be found after deleting expired profile
... I found that, in addition to the above, I had to delete all of my profiles, re-download them from the provisioning portal, and reimport them into XCode. Then, in Build Settings / Code Signing, select the proper profile for all build configurations.
– Jay Imerman
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Set Colorbar Range in matplotlib
...02, .75, .75), (1., 0.45, 0.45))
}
cm = m.colors.LinearSegmentedColormap('my_colormap', cdict, 1024)
x = np.arange(0, 10, .1)
y = np.arange(0, 10, .1)
X, Y = np.meshgrid(x,y)
data = 2*( np.sin(X) + np.sin(3*Y) )
def do_plot(n, f, title):
#plt.clf()
plt.subplot(1, 3, n)
plt.pcolor(X, ...
postgresql COUNT(DISTINCT …) very slow
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holy queries batman! This sped up my postgres count distinct from 190s to 4.5 whoa!
– rogerdpack
Nov 17 '14 at 22:25
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inject bean reference into a Quartz job in Spring?
...iringSupport.processInjectionBasedOnCurrentContext(this); as first line of my Job.execute(JobExecutionContext context) method.
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Is there a command line utility for rendering GitHub flavored Markdown?
... How does one go about getting nice styling on the resulting HTML? My output is still rendered with Times New Roman, for example.
– Holistic Developer
Aug 25 '18 at 18:49
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When should I use OWIN Katana?
...eally don't get why I should use OWIN, while I can use IIS . To simplify, my question is: What do I lose if I skip learning OWIN and use IIS for my websites?
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C/C++ include header file order
...'s a problem with the headers themselves, not with the order of includes.
My personal preference is to go from local to global, each subsection in alphabetical order, i.e.:
h file corresponding to this cpp file (if applicable)
headers from the same component,
headers from other components,
system...