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Why are there two kinds of functions in Elixir?
I'm learning Elixir and wonder why it has two types of function definitions:
8 Answers
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How do I compute derivative using Numpy?
How do I calculate the derivative of a function, for example
8 Answers
8
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How to sum a variable by group
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Using aggregate:
aggregate(x$Frequency, by=list(Category=x$Category), FUN=sum)
Category x
1 First 30
2 Second 5
3 Third 34
In the example above, multiple dimensions can be specified in the list. Multiple aggregated metrics of the same data type can be incorporated via cbind:
ag...
svn : how to create a branch from certain revision of trunk
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What does “Object reference not set to an instance of an object” mean? [duplicate]
...d booleans or structures (and can be identified because they inherit from System.ValueType). Boolean variables, when declared, have a default value:
bool mybool;
//mybool == false
Reference types, when declared, do not have a default value:
class ExampleClass
{
}
ExampleClass exampleClass; //=...
How does the “this” keyword work?
...t("I'm evaluated in the initial global execution context!");
setTimeout(function () {
alert("I'm NOT evaluated in the initial global execution context.");
}, 1);
</script>
When evaluating code in the initial global execution context, ThisBinding is set to the global object, window ...
Static hosting on Amazon S3 - DNS Configuration
... files within.
Configure your bucket as a website. With the AWS console ( https://console.aws.amazon.com/s3/ ) you can select your bucket, click properties, then select the "Website" tab. Click enabled and set your index document to "index.html" and your error document to "404.html". You will also...
AngularJS : ng-model binding not updating when changed with jQuery
...rfect, its working for me. thanks to save my hours
– Syed Md. Kamruzzaman
Sep 5 '16 at 19:13
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Undefined, unspecified and implementation-defined behavior
...tandard as unspecified (for example, order of evaluation of arguments to a function). Where possible, this International Standard defines a set of allowable behaviors. These define the nondeterministic aspects of the abstract machine.
Certain other operations are described in this International Stan...
Regex to match string containing two names in any order
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vim syntax: ^\(.*\<jack\>\)\@=\(.*\<james\>\@=\).*$ or \v^(.*<jack>)@=(.*<james>)@=.*$
– mykhal
Aug 26 '14 at 15:58
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