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Call apply-like function on each row of dataframe with multiple arguments from each row
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thanks @agstudy, that worked! do you know if there is any way to specify the args by name instead of by index? so, for testFunc, something like apply(dat[,c('x','z')], 1, [pseudocode] testFunc(a=x, b=y))? the reason is that I am calling power.t.test in this ma...
How to copy files from 'assets' folder to sdcard?
...ension
Here is the code (I left the Log statements but you can drop them now):
final static String TARGET_BASE_PATH = "/sdcard/appname/voices/";
private void copyFilesToSdCard() {
copyFileOrDir(""); // copy all files in assets folder in my project
}
private void copyFileOrDir(String path) {...
Cleanest way to build an SQL string in Java
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This one is outdated now, as per wikipedia.
– Zeus
Oct 5 '15 at 17:07
1
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What is the worst real-world macros/pre-processor abuse you've ever come across?
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He had two other quirks: A convex mirror mounted above his monitor "For knowing who is watching", and an occasional sudden exit from his chair to do a quick ten pushups. He explained this last one as "Compiler found error in code. This is punishment".
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Correct way to find max in an Array in Swift
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@LironYahdav They're now methods. Fixed. Thanks!
– Rudolf Adamkovič
Sep 27 '15 at 9:58
2
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C#: why sign an assembly?
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What do you think about signing it nowadays? On web based systems? If I'm correct, it was only necessary when talking about installed softwares, right? If I publish my app to Azure using TFS, I know it hasn't been tampered, right? Or am I missing some security...
Add an already existing directory to a directory in Solution Explorer
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I know this is a little late, but if your directory (folder) is already in place on the filesystem and you want to add it to your project (as this is stated more simply in the comments above).. just open up the file explorer (li...
How do I make python wait for a pressed key?
... | termios.ISIG | termios.IEXTEN)
termios.tcsetattr(fd, termios.TCSANOW, attrs)
# turn off non-blocking
fcntl.fcntl(fd, fcntl.F_SETFL, flags_save & ~os.O_NONBLOCK)
# read a single keystroke
ret = []
try:
ret.append(sys.stdin.read(1)) # returns a single characte...
How to report an error from a SQL Server user-defined function
I'm writing a user-defined function in SQL Server 2008. I know that functions cannot raise errors in the usual way - if you try to include the RAISERROR statement SQL returns:
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Uses of Action delegate in C# [closed]
...d it read this: http://en.wikipedia.org/wiki/Map_(higher-order_function).
Now if you are using C# 3 you can slick this up a bit with a lambda expression like so:
using System;
using System.Collections.Generic;
class Program
{
static void Main()
{
List<String> names = new Lis...