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How to save a plot as image on the disk?
...he device using dev.off()
Some example code for saving the plot to a png file:
fit <- lm(some ~ model)
png(filename="your/file/location/name.png")
plot(fit)
dev.off()
This is described in the (combined) help page for the graphical formats ?png, ?bmp, ?jpeg and ?tiff as well as in the separa...
PHP convert XML to JSON
...
<?php
class XmlToJson {
public function Parse ($url) {
$fileContents= file_get_contents($url);
$fileContents = str_replace(array("\n", "\r", "\t"), '', $fileContents);
$fileContents = trim(str_replace('"', "'", $fileContents));
$simpleXml = simplexml_load_s...
What is the point of the diamond operator () in Java 7?
...wever, I'd strongly prefer including the Java version number in the source file (instead of (mis)using the command line), see my answer.
– maaartinus
Sep 16 '11 at 17:17
38
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Getting parts of a URL (Regex)
Given the URL (single line):
http://test.example.com/dir/subdir/file.html
25 Answers
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Styling twitter bootstrap buttons
...ap are controlled in CSS by ".btn{}". What you have to do is go to the CSS file and find where it says "btn" and change the color settings. However, it's not as simple as just doing that since you also have to change what color the button changes into when you highlight it, etc. To do THAT, you have...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...that you need to change the MySQL settings, you can refer to the following files:
Linux: /etc/mysql/my.cnf or /etc/my.cnf (depending on the Linux distribution and MySQL package used)
Windows: C:**ProgramData**\MySQL\MySQL Server 5.6\my.ini (Notice it's ProgramData, not Program Files)
Here are th...
Bootstrap table striped: How do I change the stripe background colour?
...ll lose your custom override. Much better to have custom css in a separate file which you put directly after bootstrap.css in the head.
– Ben Thurley
Aug 8 '14 at 11:53
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What is “android:allowBackup”?
... they have a new lint warning that tells me the next thing on the manifest file (in the application tag):
4 Answers
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Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
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How to print last two columns using awk
...otal number of fields in the input record:
awk '{print $(NF-1),"\t",$NF}' file
this assumes that you have at least 2 fields.
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