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How to group dataframe rows into list in pandas groupby?
..., x, y]
C [6] [z]
To group-listify a single column only, convert the groupby to a SeriesGroupBy object, then call SeriesGroupBy.agg. Use,
df.groupby('a').agg({'b': list}) # 4.42 ms
df.groupby('a')['b'].agg(list) # 2.76 ms - faster
a
A [1, 2]
B [5, 5, 4]
C [...
Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
...URL:url
cachePolicy:NSURLRequestReloadIgnoringCacheData
timeoutInterval:60.0];
Then create the connection
NSURLConnection *conn = [NSURLConnection connectionWithRequest:request
delegate:self];
and implement the connection:willCacheResponse: method on the delegate. Just return...
Random number generation in C++11: how to generate, how does it work? [closed]
...bout it (what is that engine , maths term like distribution , "where all integers produced are equally likely ").
2 Ans...
How can I remove non-ASCII characters but leave periods and spaces using Python?
...fferent codec, is by using encode() or decode(). In your case, you want to convert to ASCII and ignore all symbols that are not supported. For example, the Swedish letter å is not an ASCII character:
>>>s = u'Good bye in Swedish is Hej d\xe5'
>>>s = s.encode('ascii',error...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...irst of all, do you have imagemagick installed? If you're not sure, run
$ convert --version
If you do, you probably either installed it with fink or macports (maybe homebrew?). What is happening is that rvm can't find the imagemagick directory.
After reading
https://superuser.com/questions/36143...
Allow User to input HTML in ASP.NET MVC - ValidateInput or AllowHtml
How can I allow a user to input HTML into a particular field using ASP.net MVC.
11 Answers
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How to “pretty” format JSON output in Ruby on Rails
...g to do with this patch. Also, Time.parse returns the same result when you convert the string back to time for both formats. It'd only be a minor inconvenience when searching logs for time stamps, but if you're grepping anyway adding a few \s+ isn't really a big deal.
– con--
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“Cloning” row or column vectors
...is useful to "clone" a row or column vector to a matrix. By cloning I mean converting a row vector such as
9 Answers
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Find in Files: Search all code in Team Foundation Server
...ilter used for C# files (text) was not giving the results we wanted, so we convert source files to .htm files. We can now add additional meta-data to the files such as:
Author (we define it as the person that last checked in the file)
Color coding (on our todo-list)
Number of changes indicating po...
Python Requests - No connection adapters
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@ChristianLong is there any way to convert a string to proper url? Like, can you tell me, what are you doing in your comment?
– Ravi Shankar Bharti
Aug 11 '18 at 11:50
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