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Why can't R's ifelse statements return vectors?
...urns a value with the same
shape as test which is filled with
elements selected from either yes or
no depending on whether the element
of test is TRUE or FALSE.
Since you are passing test values of length 1, you are getting results of length 1. If you pass longer test vectors, you will get...
The difference between fork(), vfork(), exec() and clone()
...
in fork(), either child or parent process will execute based on cpu selection..
But in vfork(), surely child will execute first. after child terminated, parent will execute.
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A std::map that keep track of the order of insertion?
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Thats great! Boost even has a member-selector to do the job!
– xtofl
Jul 8 '09 at 14:19
2
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What is the difference between varchar and nvarchar?
... NLS_CHARACTERSET option is set. You may be able to find it with the query SELECT value$ FROM sys.props$ WHERE name = 'NLS_CHARACTERSET'.
If your NLS_CHARACTERSET is a Unicode encoding like UTF8, great. Using VARCHAR and NVARCHAR are pretty much identical. Stop reading now, just go for it. Otherwis...
How to add title to subplots in Matplotlib?
...set_title can be used to set title, once the proper axes(ax) or subplot is selected.
import matplotlib.pyplot as plt
fig, ax = plt.subplots(2, 2, figsize=(6, 8))
for i in range(len(ax)):
for j in range(len(ax[i])):
## ax[i,j].imshow(test_images_gr[0].reshape(28,28))
ax[...
Where is svcutil.exe in Windows 7?
...in svcutil.exe
Wait for results to populate
Right click on svcutil.exe and Select 'Open file location'
Copy Windows explorer path
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PHP array: count or sizeof?
...his some bad design choice in the php interpreter that causes some sort of selective overhead? i would like to know how you benchmarked this, the microsecond measurement worries me. maybe try running this a huge amount of times in an outer for loop?
– FluorescentGreen5
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Capture Image from Camera and Display in Activity
...f I don't like the image I can delete it and click one more image and then select the image and it should return back and display that image in the activity.
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Why is a “GRANT USAGE” created the first time I grant a user privileges?
...henticate. An user with USAGE privilege can run certain SQL commands like 'select 1+1' and 'show processlist'.
– Mircea Vutcovici
Feb 26 '15 at 16:10
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Is gettimeofday() guaranteed to be of microsecond resolution?
..., detect other alternatives like HPET and ACPI PM timer, and automatically select the best one. It's a good idea to always use the kernel for timing unless you are really sure the TSC is stable and monotonic.
– CesarB
Jul 7 '09 at 23:03
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