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How to count TRUE values in a logical vector
...) is more self explaining. Though, I think with a simple task like this it does not really make a difference...
If it is a large vector, you probably should go with the fastest solution, which is sum(z). length(z[z==TRUE]) is about 10x slower and table(z)[TRUE] is about 200x slower than sum(z).
Su...
Removing MySQL 5.7 Completely [closed]
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First of all, do a backup of your needed databases with mysqldump
Note: If you want to restore later, just backup your relevant databases, and not the WHOLE, because the whole database might actually be the reason you need to purge an...
Git branch strategy for small dev team [closed]
...which might be a real pain if there is something in that branch that needs documenting / database changes or something else hard to do. I think for urgent "hotfixes", you should make your branch from master.
– Richard
Sep 1 '12 at 7:45
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How does one reorder columns in a data frame?
...2,3,4 refers to the columns.
To change the order as in the above question do df2[,c(1,3,2,4)]
If you want to output this file as a csv, do write.csv(df2, file="somedf.csv")
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What is the difference between __init__ and __call__?
...is used to initialise newly created object, and receives arguments used to do that:
class Foo:
def __init__(self, a, b, c):
# ...
x = Foo(1, 2, 3) # __init__
The second implements function call operator.
class Foo:
def __call__(self, a, b, c):
# ...
x = Foo()
x(1, 2, 3) # ...
Is there a way to get colored text in Github Flavored Markdown? [duplicate]
I need to document a library on github that output colored text in the terminal.
5 Answers
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Multiple GitHub Accounts & SSH Config
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See also doblock.com/articles/…. The key new piece of info there is that you may need to add the username ("work", in this example) to the hostname in the remote URL, i.e., git@work.github.com:work/my_repo.git (as opposed to "git@g...
Prevent dialog dismissal on screen rotation in Android
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It says that onAttach is deprecated now. What should be done instead?
– farahm
Sep 20 '16 at 7:44
3
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How to increase heap size of an android application?
...rbread and above.
The only way to have as large a limit as possible is to do memory intensive tasks via the NDK, as the NDK does not impose memory limits like the SDK.
Alternatively, you could only load the part of the model that is currently in view, and load the rest as you need it, while removi...
Does this app use the Advertising Identifier (IDFA)? - AdMob 6.8.0
...g me if this app users IDFA. I'm using the latest Admob SDK or 6.8.0 and I don't know if it uses IDFA or not, and if it does which check boxes should I hit X.X
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