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Easiest way to convert int to string in C++
...ric type) and std::to_string, the counterparts of the C atoi and itoa but expressed in term of std::string.
#include <string>
std::string s = std::to_string(42);
is therefore the shortest way I can think of. You can even omit naming the type, using the auto keyword:
auto s = std::to_stri...
What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...
Judging from the examples you provide, I'm assuming that by ANNs, you mean multilayer feed-forward networks (FF nets for short), such as multilayer perceptrons, because those are in direct competition with SVMs.
One specific benefit that thes...
Underscore: sortBy() based on multiple attributes
...bjects a second attribute should be used to comapare the two objects. For example, consider the following array:
11 Answers...
How to install Homebrew on OS X?
I'm trying to install Homebrew on OS X.
13 Answers
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Is there a way to change the spacing between legend items in ggplot2?
... v3.0.0 released in July 2018 has working options to modify legend.spacing.x, legend.spacing.y and legend.text.
Example: Increase horizontal spacing between legend keys
library(ggplot2)
ggplot(mtcars, aes(factor(cyl), fill = factor(cyl))) +
geom_bar() +
coord_flip() +
scale_fill_brewer(...
SVG get text element width
...avaScript for an SVG file and need to get the width and height of a text element so I can resize a rectangle that surrounds it. In HTML I would be able to use the offsetWidth and offsetHeight attributes on the element but it appears that those properties are unavailable.
...
Ruby on Rails: Where to define global constants?
...ch are accessible from everywhere in an initializer like in the following example. This is probably the best place, if your colours are really global and used in more than one model context.
# put this into config/initializers/my_constants.rb
COLOURS = ['white', 'blue'].freeze
Note: when we defin...
Is an array name a pointer?
...ces for integers, but it can point to a space for an integer. We can, for example, set it to point to one of the places in the array a, such as the first one:
p = &a[0];
What can be confusing is that you can also write this:
p = a;
This does not copy the contents of the array a into the po...
Difference between JSON.stringify and JSON.parse
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JSON.stringify turns a JavaScript object into JSON text and stores that JSON text in a string, eg:
var my_object = { key_1: "some text", key_2: true, key_3: 5 };
var object_as_string = JSON.stringify(my_object);
// "{"key_1":"some text","key_2":true,"key_3":5}"
typeof(ob...
马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...行合伙人沈南鹏联合香港科技大学李泽湘等教授发起的“X科技创业平台”在香港成立。全国政协副主席董建华、香港特别行政区行政长官梁振英、香港创科局局长杨伟雄及中央政府驻港联络办主任张晓明均有出席。
作为“X科...