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How to enable PHP's openssl extension to install Composer?
...set in the PATH environment variable.
If you want to enable the openssl extension to install Composer, first you need to check the location of the PHP installation.
Open a Command Prompt, type: echo %PATH% then check for the location of your PHP installation.
Go to that location and edit the fil...
What is the difference between IEqualityComparer and IEquatable?
... This interface is not meant to be implemented by T itself, but by other "external" classes. Therefore, when testing two instances of T for equality, because T has no internal understanding of equality, you will have to make an explicit choice of a IEqualityComparer<T> instance which performs ...
pandas dataframe columns scaling with sklearn
I have a pandas dataframe with mixed type columns, and I'd like to apply sklearn's min_max_scaler to some of the columns. Ideally, I'd like to do these transformations in place, but haven't figured out a way to do that yet. I've written the following code that works:
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Convert data.frame columns from factors to characters
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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...