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How do I sort an array of hashes by a value in the hash?
...by has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value"] }
puts sorted
As of Ruby 1.9+, .sort_by! is available for in-place sorting:
sort_me.sort_by! { |k| k["value"]}
...
Why is it not possible to extend annotations in Java?
...nnotation belongs to a category?
Try this:
@Target(ElementType.ANNOTATION_TYPE)
public @interface Category {
String category();
}
@Category(category="validator")
public @interface MyFooBarValidator {
}
As you can see, you can easily group and categorize annotations without undue pain using...
How to display PDF file in HTML?
...tion of a PDF file in your HTML web-page is very easy.
<embed src="file_name.pdf" width="800px" height="2100px" />
Make sure to change the width and height for your needs.
Good luck!
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How to redirect to Index from another controller?
...er
{
// GET: /<controller>/
public IActionResult _Layout(string btnLogout)
{
if (btnLogout != null)
{
return LocalRedirect("~/Index");
}
return View();
}
}
...
Reshaping data.frame from wide to long format
...UE)
library(reshape)
x2 <- melt(x, id = c("Code", "Country"), variable_name = "Year")
x2[,"Year"] <- as.numeric(gsub("X", "" , x2[,"Year"]))
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recursion versus iteration
...iption of an algorithm in pseudocode: csl.mtu.edu/cs2321/www/newLectures/26_Depth_First_Search.html
– jdelman
Feb 21 '18 at 15:53
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Colorized Ruby output to the terminal [closed]
...code in Cygwin but it comes out without colors..
– jj_
Mar 8 '13 at 15:07
5
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How to make git ignore changes in case?
... into account. ignorecase = false did the trick, it was defaulted to true -_-
– Alex C
Mar 31 '16 at 14:36
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Having options in argparse with a dash
...away the initial -- string. Any internal - characters will be converted to _ characters to make sure the string is a valid attribute name
So you should be using args.pm_export.
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remove legend title in ggplot
...
You were almost there : just add theme(legend.title=element_blank())
ggplot(df, aes(x, y, colour=g)) +
geom_line(stat="identity") +
theme(legend.position="bottom") +
theme(legend.title=element_blank())
This page on Cookbook for R gives plenty of details on how to customize ...