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Sample random rows in dataframe
...ow make it better by checking first if n<=nrow(df) and stopping with an error.
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How to initialize const member variable in a class?
...e the const member variable t with 100. But it's giving me the following error:
11 Answers
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Nginx — static file serving confusion with root & alias
..._max_body_size 10M;
access_log /var/log/nginx/project.access.log;
error_log /var/log/nginx/project.error.log;
location /static {
index index.html;
}
location /media {
alias /home/ubuntu/project/media/;
}
}
Server block to live the static page on nginx.
...
From io.Reader to string in Go
.... Example:
buf := new(strings.Builder)
n, err := io.Copy(buf, r)
// check errors
fmt.Println(buf.String())
OUTDATED INFORMATION BELOW
The short answer is that it it will not be efficient because converting to a string requires doing a complete copy of the byte array. Here is the proper (non-ef...
Git pull a certain branch from GitHub
...
But I get an error "! [rejected]" and something about "non fast forward"
That's because Git can't merge the changes from the branches into your current master. Let's say you've checked out branch master, and you want to merge in the rem...
Reject binary with state waiting for review (can't find reject binary button)
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I set 2.0 both time. But got error saying redundant binary..finaly set version number to 2.1. and binary approved.
– Guru
Sep 14 '14 at 5:44
...
Android get free size of internal/external memory
...rmatSize(availableBlocks * blockSize);
} else {
return ERROR;
}
}
public static String getTotalExternalMemorySize() {
if (externalMemoryAvailable()) {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(...
Check if a variable is of function type
...rence (open your javascript console and reload page, there might be logged error messages). Note: Revision 3 added isFunctionD (based on only typeof == "function") - and it seems to be much faster than Underscore's "fast" version.
– Joel Purra
Feb 2 '12 at 18:3...
How to compile for Windows on Linux with gcc/g++?
...
cool, the cpp had very simple errors (void main(){} etc...), I guess it compiles at windows but fails at mingw, I fixed them. I tried also i586-mingw32msvc-cpp and it generated a text file with something like things to be compiled lol.. the g++ one worke...
How do I update pip itself from inside my virtual environment?
...
Running this shown me a lot of stuff including Download error on https://pypi.python.org/simple/pip/: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) -- Some packages may not be found! which wasn't displayed when running --upgrade. And it's likely the...