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R command for setting working directory to source file location in Rstudio
I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below:
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What APIs are used to draw over other apps (like Facebook's Chat Heads)?
... one:
Allows an application to open windows using the type
TYPE_SYSTEM_ALERT, shown on top of all other applications.
Very few applications should use this permission; these windows are intended
for system-level interaction with the user.
Constant Value: "android.permission.SYSTEM_AL...
How do I create a round cornered UILabel on the iPhone?
...perty on the CALayer class. Every view has a CALayer instance that you can manipulate. This means you can get rounded corners in one line:
view.layer.cornerRadius = 8;
You will need to #import <QuartzCore/QuartzCore.h> and link to the QuartzCore framework to get access to CALayer's headers ...
How can I scale the content of an iframe?
How can I scale the content of an iframe (in my example it is an HTML page, and is not a popup) in a page of my web site?
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How to use clock() in C++
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#include <iostream>
#include <cstdio>
#include <ctime>
int main() {
std::clock_t start;
double duration;
start = std::clock();
/* Your algorithm here */
duration = ( std::clock() - start ) / (double) CLO...
Is it possible to animate scrollTop with jQuery?
I want to smoothly scroll down. I do not want to have to write a function for that - especially if jQuery already has one.
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“var” or no “var” in JavaScript's “for-in” loop?
... way to write a for-in loop in JavaScript? The browser doesn't issue a complaint about either of the two approaches I show here. First, there is this approach where the iteration variable x is explicitly declared:
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pip issue installing almost any library
I have a difficult time using pip to install almost anything. I'm new to coding, so I thought maybe this is something I've been doing wrong and have opted out to easy_install to get most of what I needed done, which has generally worked. However, now I'm trying to download the nltk library, and neit...
How to use 'find' to search for files created on a specific date? [closed]
How do I use the UNIX command find to search for files created on a specific date?
9 Answers
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When should I make explicit use of the `this` pointer?
When should I explicitly write this->member in a method of
a class?
12 Answers
12...