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How do I sort one vector based on values of another
...but I will leave this in for posterity.]
You can do this without loops by indexing on your y vector. Add an incrementing numeric value to y and merge them:
y <- data.frame(index=1:length(y), x=y)
x <- data.frame(x=x)
x <- merge(x,y)
x <- x[order(x$index),"x"]
x
[1] 4 4 4 2 2 1 3 3 3
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C++: What is the size of an object of an empty class?
... different addresses. Imagine an array of zero-size objects. How would you index it? In some cases, the compiler is allowed to optimize this away though (the empty base class optmization)
– jalf
Mar 7 '09 at 11:07
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How to parse an RSS feed using JavaScript?
...ely to work.
My workaround will probably be to parse the RSS feed through PHP and allow the javascript to access my PHP rather than trying to access the end-destination feed itself.
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MySQL with Node.js
...de.js. I come from a PHP background, so I'm fairly used to using MySQL for all my database needs.
9 Answers
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jquery.validate.unobtrusive not working with dynamic injected elements
...ate it to include the code in the comments otherwise it can break. Specifically, change the two selector lines to double quote the id.
– Ryan O'Neill
Jul 14 '11 at 19:50
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Create Directory When Writing To File In Node.js
...rname = path.normalize(dirname).split(path.sep);
dirname.forEach((sdir,index)=>{
var pathInQuestion = dirname.slice(0,index+1).join(path.sep);
if((!fs.isDir(pathInQuestion)) && pathInQuestion) fs.mkdirSync(pathInQuestion);
});
};
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Postgres: INSERT if does not exist already
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One approach would be to create a non-constrained (no unique indexes) table to insert all your data into and do a select distinct from that to do your insert into your hundred table.
So high level would be. I assume all three columns are distinct in my example so for step3 change the...
How do I dynamically assign properties to an object in TypeScript?
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Index types
It is possible to denote obj as any, but that defeats the whole purpose of using typescript. obj = {} implies obj is an Object. Marking it as any makes no sense. To accomplish the desired consistency an interface ...
How to make a whole 'div' clickable in html and css without JavaScript? [duplicate]
...a element is now transparent; that is, an instance of the a element is now allowed to also contain flow content". dev.w3.org/html5/markup/a.html#a-changes
– Damien
Jan 3 '13 at 9:25
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Wrong requestCode in onActivityResult
...quest code is not wrong. When using v4 support library fragments, fragment index is encoded in the top 16 bits of the request code and your request code is in the bottom 16 bits. The fragment index is later used to find the correct fragment to deliver the result.
Hence for Activities started form f...