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Overlaying histograms with ggplot2 in R
I am new to R and am trying to plot 3 histograms onto the same graph.
Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off.
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Why is my Android emulator keyboard in Chinese character mode?
I'm debugging my Android application using the AVD (Android Virtual Device). When I try to enter text in a text field, my characters are being interpreted as Chinese in the IME.
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Regex - Should hyphens be escaped? [duplicate]
... what the "square brackets" are called) the hyphen has no special meaning, and within a character class, you can place a hyphen as the first or last character in the range (e.g. [-a-z] or [0-9-]), OR escape it (e.g. [a-z\-0-9]) in order to add "hyphen" to your class.
It's more common to find a hyph...
Access event to call preventdefault from custom function originating from onclick attribute of tag
...e. older versions of IE will still require detection inside of your event handler function to look at window.event).
A quick example.
function sayHi(e) {
e.preventDefault();
alert("hi");
}
<a href="http://google.co.uk" onclick="sayHi(event);">Click to say Hi</a>
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What exactly are late static bindings in PHP?
... which it is used. This means that if you make a method in a parent class and call it from a child class, self will not reference the child as you might expect.
Late static binding introduces a new use for the static keyword, which addresses this particular shortcoming. When you use static, it re...
Sort array of objects by single key with date value
I have an array of objects with several key value pairs, and I need to sort them based on 'updated_at':
19 Answers
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How to take backup of a single table in a MySQL database?
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Dump and restore a single table from .sql
Dump
mysqldump db_name table_name > table_name.sql
Dumping from a remote database
mysqldump -u <db_username> -h <db_host> -p db_name table_name > table_name.sql
Fo...
“Instantiating” a List in Java? [duplicate]
...e.
ArrayList is a concrete class that happens to implement this interface and all of the methods in it.
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Install specific git commit with pip
I'm developing a django app and I'm using pip to manage my requirements. How can I do to install a specific git's commit?
4...
How do I loop through a list by twos? [duplicate]
I want to loop through a Python list and process 2 list items at a time. Something like this in another language:
7 Answers...