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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 [...
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...
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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Create instance of generic type whose constructor requires a parameter?
...u already have a constructed enumerable of parameters should you bother to convert it to object[] and pass that to CreateInstance.
– ErikE
Aug 4 '15 at 16:36
2
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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...
int to hex string
I need to convert an int to hex string.
4 Answers
4
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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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Change text color based on brightness of the covered background area?
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If you are using ES6, convert hex to RGB then can use this:
const hexToRgb = hex => {
// turn hex val to RGB
const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
return result
? {
r: parseInt(r...