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How to select a CRAN mirror in R
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You should either get a window with a list of repositories or a text menu with some options. But if that is not appearing, you can always specify the mirror from where to download the packages yourself by using repos parameter. By doing that, R will not ask you anymore abou...
process.env.NODE_ENV is undefined
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To set an environment variable in Windows:
SET NODE_ENV=development
on OS X or Linux:
export NODE_ENV=development
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How to insert a newline in front of a pattern?
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This works in bash and zsh, tested on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to...
How do I find the install time and date of Windows?
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In regedit.exe go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\InstallDate
It's given as the number of seconds since January 1, 1970. (Note: for Windows 10, this date will be when the last feature update was installed, not the original install date.)
To...
Capture Image from Camera and Display in Activity
...ort android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MyCameraActivity extends Activity
{
private static final int CAMERA_REQUEST = 1888;
private ImageView ...
Is D a credible alternative to Java and C++? [closed]
...s being equal.
However, other things matter for software development - almost more than the language itself: portability (how many platforms does it run on), debugger support, IDE support, standard library quality, dynamic library support, bindings for common APIs, documentation, the developer comm...
Replace Line Breaks in a String C#
..., "replacement text"); //add a line terminating ;
As mentioned in other posts, if the string comes from another environment (OS) then you'd need to replace that particular environments implementation of new line control characters.
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How to Select Columns in Editors (Atom,Notepad++, Kate, VIM, Sublime, Textpad,etc) and IDEs (NetBean
...w keys to select columns without the mouse.
– Brian Koser
Nov 14 '11 at 16:08
+1 for quad-click-drag. I know Vim users...
How do I check if file exists in Makefile so I can delete it?
...le exists:
ifeq ($(UNAME),Darwin)
SHELL := /opt/local/bin/bash
OS_X := true
else ifneq (,$(wildcard /etc/redhat-release))
OS_RHEL := true
else
OS_DEB := true
SHELL := /bin/bash
endif
Update:
I found a way which is really working for me:
ifneq ("$(wildcard $(PATH_...
What's the meaning of exception code “EXC_I386_GPFLT”?
...an address that isn't 16-byte aligned.
There are, as I said, many other possible reasons, but most of those involve things that "normal" code wouldn't be doing in a 32- or 64-bit OS (such as loading segment registers with invalid selector index or writing to MSR's (model specific registers)).
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