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Convert data.frame columns from factors to characters
...
Just following on Matt and Dirk. If you want to recreate your existing data frame without changing the global option, you can recreate it with an apply statement:
bob <- data.frame(lapply(bob, as.character), stringsAsFactors=FALSE)
This will convert all variables to class "characte...
Pass an array of integers to ASP.NET Web API?
...ArrayModelBinder : IModelBinder
{
public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
{
var key = bindingContext.ModelName;
var val = bindingContext.ValueProvider.GetValue(key);
if (val != null)
{
var s = val....
Replace whole line containing a string using Sed
I have a text file which has a particular line something like
13 Answers
13
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Order of serialized fields using JSON.NET
... @cangosta The order for deserialization should not matter .. except in some very "odd" expectation cases.
– user2864740
Dec 5 '16 at 6:08
1
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Determine path of the executing script
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This error happens when you try to execute dirname(sys.frame(1)$ofile) directly from Rstudio. It works ok when the script is executed using source("other.R"), and dirname(sys.frame(1)$ofile) is inside "other.R".
– Murta
Ju...
Cell spacing in UICollectionView
...ayoutAttributes *prevLayoutAttributes = answer[i - 1];
NSInteger maximumSpacing = 4;
NSInteger origin = CGRectGetMaxX(prevLayoutAttributes.frame);
if(origin + maximumSpacing + currentLayoutAttributes.frame.size.width < self.collectionViewContentSize.width) {
C...
How can I create a two dimensional array in JavaScript?
...ne and some places say it isn't possible, some say it is and then give an example and others refute the example, etc.
50 A...
How to link to apps on the app store
...ced. You can link an app without leaving your app. Code snippet in Swift 3.x/2.x and Objective-C is here.
A SKStoreProductViewController object presents a store that allows the
user to purchase other media from the App Store. For example, your app
might display the store to allow the user to...
How to get a key in a JavaScript object by its value?
...find(key => object[key] === value);
}
ES6, no prototype mutations or external libraries.
Example,
function getKeyByValue(object, value) {
return Object.keys(object).find(key => object[key] === value);
}
const map = {"first" : "1", "second" : "2"};
console.log(getKeyByValue(ma...
How to change maven logging level to display only warning and errors?
...rence/running-sect-options.html#running-sect-verbose-option
-e for error
-X for debug
-q for only error
Maven logging config file
Currently maven 3.1.x uses SLF4J to log to the System.out .
You can modify the logging settings at the file:
${MAVEN_HOME}/conf/logging/simplelogger.properties
Accordi...