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Linking R and Julia?
...("sqrt", 2)
julia_eval("sqrt")(2)
As you can see, you could send command strings and call Julia functions really easily.
And there are also some R packages wrapping Julia packages using JuliaCall, for example,
convexjlr for Disciplined Convex Programming in R using Convex.jl, which is also on ...
Practical uses of different data structures [closed]
...they have a continuous memory for them: boolean, char, int, float, double, string.
composite data structures are data structures that are composed of more than one primitive data types.class, structure, union, array/record.
abstract datatypes are composite datatypes that have way to access them effi...
Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls
...by file names as below:
Particularly in the AdBlock Plus the character string "-300x600" is causing the Failed to Load Resource
ERR_BLOCKED_BY_CLIENT problem.
As shown in the picture, some of the images were blocked because of the '-300x600' pattern in their name, that particular text patter...
How to remove the lines which appear on file B from another file A?
...1
EOF
grep -Fvxf B A
Output:
b
a
01
b
Explanation:
-F: use literal strings instead of the default BRE
-x: only consider matches that match the entire line
-v: print non-matching
-f file: take patterns from the given file
This method is slower on pre-sorted files than other methods, since i...
How to detect internet speed in JavaScript?
...ShowProgressMessage(msg) {
if (console) {
if (typeof msg == "string") {
console.log(msg);
} else {
for (var i = 0; i < msg.length; i++) {
console.log(msg[i]);
}
}
}
var oProgress = document.get...
iOS 7 UIBarButton back button arrow color
...Color];
*If you are using an app with more than 1 navigation controller, and you want this chevron color to apply to each, you may want to use the appearance proxy to set the back button chevron for every navigation controller, as follows:
[[UINavigationBar appearance] setTintColor:[UIColor white...
Resetting a multi-stage form with jQuery
...ut.val('') on an input with a default value of 50 would set it to an empty string, whereas calling myform.reset() would reset it to its initial value of 50.
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jQuery to loop through elements with the same class
I have a load of divs with the class testimonial and I want to use jquery to loop through them to check for each div if a specific condition is true. If it is true, it should perform an action.
...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...
From the offical documentation:
raise
raise( string )
raise( exception [, string [, array ] ] )
With no arguments, raises the exception in $! or raises a RuntimeError if $! is nil. With a single String argument, it raises a RuntimeError with the string as a message. O...
Convert text into number in MySQL query
...
This should work:
SELECT field,CONVERT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num
FROM table
ORDER BY num;
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