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Adding a regression line on a ggplot
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In general, to provide your own formula you should use arguments x and y that will correspond to values you provided in ggplot() - in this case x will be interpreted as x.plot and y as y.plot. More information about smoothing methods and formula you can find in help page of function stat_smo...
How to send an email using PHP?
I am using PHP on a website and I want to add emailing functionality.
14 Answers
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Checking if a folder exists (and creating folders) in Qt, C++
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Why it isn't static? QDir::exists("absolutepath") and QDir::mkdir(""absolutepath")
– yalov
Jun 19 '17 at 17:20
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Why is Git better than Subversion?
I've been using Subversion for a few years and after using SourceSafe , I just love Subversion. Combined with TortoiseSVN , I can't really imagine how it could be any better.
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What is the difference between square brackets and parentheses in a regex?
.../^[789]\d{9}$/
/^[7-9]\d{9}$/
The explanation:
(a|b|c) is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you would code (?:7|8|9) to make it a non capturing group.
[abc] is a "character class" th...
How to make an input type=button act like a hyperlink and redirect using a get request? [duplicate]
How do I make a <input type=button> act like a hyperlink and redirect using a GET request?
6 Answers
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Is there a Mutex in Java?
...someObject) {
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}
You can read more about this here: Intrinsic Locks and Synchronization
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How to run multiple shells on Emacs
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C-u runs the command universal-argument. It's a way of injecting an argument into the next command. You can read more about it with C-h k C-u (C-h k runs describe-key, very handy!)
– Matt Curtis
Sep 28 '...
IIS: Idle Timeout vs Recycle
...is if no action has been asked from your web app, it the process will drop and release everything from memory
Recycle is a forced action on the application where your processed is closed and started again, for memory leaking purposes and system health
The negative impact of both is usually the use...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
...re relate to the ineffectiveness of the concept of CAPTCHA, in principle - and while I very much agree with them, in fact gave a talk at OWASP a few months ago explaining just that - the question is very specific, so I will provide for a demonstration.
But first, I will reiterate that demonstration ...