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How to split data into training/testing sets using sample function
...ple example:
data(mtcars)
## 75% of the sample size
smp_size <- floor(0.75 * nrow(mtcars))
## set the seed to make your partition reproducible
set.seed(123)
train_ind <- sample(seq_len(nrow(mtcars)), size = smp_size)
train <- mtcars[train_ind, ]
test <- mtcars[-train_ind, ]
...
How can I use an http proxy with node.js http.Client?
...y.
var http = require("http");
var options = {
host: "proxy",
port: 8080,
path: "http://www.google.com",
headers: {
Host: "www.google.com"
}
};
http.get(options, function(res) {
console.log(res);
res.pipe(process.stdout);
});
For the record his answer does work with http://node...
How do I set bold and italic on UILabel of iPhone/iPad?
... |
edited Apr 12 '19 at 1:09
Kendall Helmstetter Gelner
72.5k2626 gold badges123123 silver badges146146 bronze badges
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Is C++ context-free or context-sensitive?
...
20 Answers
20
Active
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
... using #if, I can write this
DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000);
... instead of ...
#ifdef DEBUG_MODE
DoSomethingSlowWithTimeout(5000);
#else
DoSomethingSlowWithTimeout(1000);
#endif
Second, you're in a better position if you want to migrate from a #define to a global...
How do you bind an Enum to a DropDownList control in ASP.NET?
...mes As Array = System.Enum.GetNames(GetType(Response))
For i As Integer = 0 To itemNames.Length - 1
Dim item As New ListItem(itemNames(i), itemValues(i))
dropdownlist.Items.Add(item)
Next
Or the same in C#
Array itemValues = System.Enum.GetValues(typeof(Response));
Array itemNames = Sy...
How would one write object-oriented code in C? [closed]
... community wiki
6 revs, 6 users 50%mepcotterell
28
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How do I get the full path to a Perl script that is executing?
...during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't think of a way to reliably get the fullpath+filename of the script.
...
What is the worst gotcha in C# or .NET? [closed]
...
304
private int myVar;
public int MyVar
{
get { return MyVar; }
}
Blammo. Your app crashes w...
How to customize an end time for a YouTube video?
...e video. I know that I can customize the start time by adding &start=30 , but I haven't seen anything relating to the end time.
...