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How to sort a dataframe by multiple column(s)
... code:
R> dd[with(dd, order(-z, b)), ]
b x y z
4 Low C 9 2
2 Med D 3 1
1 Hi A 8 1
3 Hi A 9 1
Edit some 2+ years later: It was just asked how to do this by column index. The answer is to simply pass the desired sorting column(s) to the order() function:
R> dd[order(-dd[,4], dd[,1]), ...
gunicorn autoreload on source change
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edited Sep 2 at 5:30
Martlark
11.5k1212 gold badges6868 silver badges8787 bronze badges
answered...
How to keep indent for second line in ordered lists via CSS?
... answer below:
ul {
list-style-position: outside;
}
See https://www.w3schools.com/cssref/pr_list-style-position.asp
Original Answer
I'm surprised to see this hasn't been solved yet. You can make use of the browser's table layout algorithm (without using tables) like this:
ol {
counter-r...
Django: How to completely uninstall a Django app?
...ass():
print "deleting %s"%c # print(f"deleting {c}") # for Python 3.6+
c.delete()
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string.ToLower() and string.ToLowerInvariant()
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edited May 23 '17 at 11:54
Community♦
111 silver badge
answered Nov 4 '13 at 22:05
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How to extract the decision rules from scikit-learn decision-tree?
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143
I believe that this answer is more correct than the other answers here:
from sklearn.tree impor...
Logging errors in ASP.NET MVC
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103
I would consider simplifying your web application by plugging in Elmah.
You add the Elmah assem...
Append TimeStamp to a File Name
...ethod
Usage:
string result = "myfile.txt".AppendTimeStamp();
//myfile20130604234625642.txt
Extension method
public static class MyExtensions
{
public static string AppendTimeStamp(this string fileName)
{
return string.Concat(
Path.GetFileNameWithoutExtension(fileNam...
Error: Could not create the Java Virtual Machine Mac OSX Mavericks
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305
Normally this error occurs when you invoke java by supplying the wrong arguments/options. In t...
