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Linux find file names with given string
...thought that would be a syntax error, but it works. I can simplify some of my code from now on.
– Joe
Oct 8 '15 at 10:34
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How to store a git config as part of the repository?
...cribed here .
Now the problem is that filter definition is only stored in my local configuration file:
2 Answers
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Remove duplicated rows using dplyr
...y z
## 1 0 1 1
## 2 1 0 2
## 3 1 1 4
(In dplyr 0.2 you won't need the dummy z variable and will just be
able to write row_number() == 1)
I've also been thinking about adding a slice() function that would
work like:
df %>% group_by(x, y) %>% slice(from = 1, to = 1)
Or maybe a variation of...
How to know if other threads have finished?
...s to be true. I imagine it caused other people problems that were fresh in my memory nine years ago. Exactly what is observable will depend upon implementation. You tell a Thread to start, which the thread does, but the call returns immediately. isAlive should be a simple flag test, but when I googl...
What is the difference between float and double?
...t happen.
It took me five hours to realize this minor error, which ruined my program.
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How to forward declare a template class in namespace std?
and used that function in my main. I get errors. Of course, I know that there are more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
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How do you dynamically add elements to a ListView on Android?
...wer actually introduces ListActivity, which only grand masters know about. My only problem now is how to I add drawables and stuff to views in the list. Seems to me I am only adding strings.
– user9599745
Aug 21 '19 at 12:07
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convert pfx format to p12
...-destkeystore new.p12 -deststoretype pkcs12 -srckeystore original.pfx
In my case the password for the new file (new.p12) had to be the same as the password for the .pfx file.
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Why can't I define a default constructor for a struct in .NET?
...onstructor would be called when it wouldn't. For instance, consider this:
MyStruct[] foo = new MyStruct[1000];
The CLR is able to do this very efficiently just by allocating the appropriate memory and zeroing it all out. If it had to run the MyStruct constructor 1000 times, that would be a lot le...
Initializing a member array in constructor initializer
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The first two words of my sentence are In C++03, ...
– Roger Pate
Oct 31 '10 at 7:21
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