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Define all functions in one .R file, call them from another .R file. How, if possible?
How do I call functions defined in abc.R file in another file, say xyz.R?
1 Answer
1
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Cannot ping AWS EC2 instance
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Thank you, I like this. I just want to allow the ping, not all.
– Chu-Siang Lai
Nov 25 '16 at 11:29
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Building vs. Compiling (Java)
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The "Build" is a process that covers all the steps required to create a "deliverable" of your software. In the Java world, this typically includes:
Generating sources (sometimes).
Compiling sources.
Compiling test sources.
Executing tests (unit tests, integrat...
@property retain, assign, copy, nonatomic in Objective-C
...gners opted for the safer of the two solutions. In fact nonatomic is generally the better choice as it omits extremely expensive thread locks. The only reason to use atomic is if your property might be set from multiple threads (in which case omitting it can lead to an over-release or a leak).
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What is the difference between persist() and merge() in JPA and Hibernate?
...these
other entities are annotated with the
cascade=PERSIST or cascade=ALL
annotation element value or specified
with the equivalent XML descriptor
element.
If X is a removed entity,
it becomes managed.
If X is a
detached object, the
EntityExistsException may be thrown
when the...
How do I remove objects from a JavaScript associative array?
...rray, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop.
Note that the delete operator in JavaScript does not directly free memory. Its purpose is to remove properties from objects. Of course, if a property being deleted ...
Convert data.frame column format from character to factor
...e to the world of R.
mtcars #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[...
Find the version of an installed npm package
How to find the version of an installed node.js/npm package ?
27 Answers
27
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
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Use callbacks. Something like this should work based on your sample code.
function someFunc() {
callAjaxfunc(function() {
console.log('Pass2');
});
}
function callAjaxfunc(callback) {
//All ajax calls called here
o...
How to frame two for loops in list comprehension python
...ehension. (Perfectly matches the 79 character limit too (without the list call))
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