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Installing older version of R package
I am trying to use Rpy2 and ggplot2 but I get an error. After some searching for the error online, I found that the error occurs because there are changes in the ggplot2 package that are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
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Is there a builtin confirmation dialog in Windows Forms?
I'd like to create a simple confirm dialog saying "Please check the information and if you're sure it's correct, click OK."
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What does template mean?
When declaring a template, I am used to having this kind of code:
4 Answers
4
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How to migrate back from initial migration in Django 1.7?
...els are poorly thought out. As I haven't committed the code the sensible thing would be to migrate the database to last good state and redo the migration with better models. In this case the last good state is database where the new app doesn't exist.
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New to MongoDB Can not run command mongo
I was trying to run MongoDB:
15 Answers
15
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How do you manually execute SQL commands in Ruby On Rails using NuoDB
I'm trying to manually execute SQL commands so I can access procedures in NuoDB.
4 Answers
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Java: Class.this
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LocalScreen.this refers to this of the enclosing class.
This example should explain it:
public class LocalScreen {
public void method() {
new Runnable() {
public void run() {
// Prints "An anonymous Runnable"
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PHP array delete by value (not key)
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Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove...
REST APIs: custom HTTP headers vs URL parameters
When do you use custom HTTP headers in the request part of a REST API ?
8 Answers
8
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Linq: GroupBy, Sum and Count
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I don't understand where the first "result with sample data" is coming from, but the problem in the console app is that you're using SelectMany to look at each item in each group.
I think you just want:
List<ResultLine> result = Lines
.GroupBy(l => l.ProductCode)
.Select(c...