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How to combine multiple conditions to subset a data-frame using “OR”?
... I intended, since ...
> NA & 1
[1] NA
> 0 & NA
[1] FALSE
Order of arguments may matter when using '&".
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AWS MySQL RDS vs AWS DynamoDB [closed]
... for a fair while now and I'm comfortable with its structure & SQL Queries etc.
4 Answers
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Underscore: sortBy() based on multiple attributes
...inds that John and Lisa have the same room number it will keep them in the order it found them, which the first sortBy set to "Lisa, John".
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Multiple actions were found that match the request in Web Api
...ntroller}/{id}",
defaults: new { id = RouteParameter.Optional });
But in order to have multiple actions with the same http method you need to provide webapi with more information via the route like so:
routes.MapHttpRoute(
name: "API Default",
routeTemplate: "api/{controller}/{action}/{id}",
defa...
Sankey Diagrams in R?
...it <- as.data.frame(Titanic)
# 4d
alluvial( tit[,1:4], freq=tit$Freq, border=NA,
hide = tit$Freq < quantile(tit$Freq, .50),
col=ifelse( tit$Class == "3rd" & tit$Sex == "Male", "red", "gray") )
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How well is Unicode supported in C++11?
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@Uflex: from the page you linked In order to achieve this goal Boost.Locale uses the-state-of-the-art Unicode and Localization library: ICU - International Components for Unicode.
– Matthieu M.
Jun 14 '13 at 13:42
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Extracting the last n characters from a string in R
...tringr had been remade using stringi as a backend, so should work with NAs etc. now.
– m-dz
Jul 11 '16 at 10:09
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C# list.Orderby descending
I would like to receive a list sorted by 'Product.Name' in descending order .
6 Answers
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I need to securely store a username and password in Python, what are my options?
...t runs mathematical calculations to prove that you have the right key.
In order to make it work, you need the following:
The database or whatever you are accessing needs to be accessible by SSH. Try searching for "SSH" plus whatever service you are accessing. For example, "ssh postgresql". If thi...
Clicking the back button twice to exit an activity
...urn;
}
else { Toast.makeText(getBaseContext(), "Tap back button in order to exit", Toast.LENGTH_SHORT).show(); }
mBackPressed = System.currentTimeMillis();
}
Back on accepted answer critique; Using a flag to indicate if it was pressed in last TIME_INTERVAL (say 2000) milliseconds an...