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Adding a regression line on a ggplot
...ine on a ggplot. I first tried with abline but I didn't manage to make it work. Then I tried this...
5 Answers
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How to create a custom string representation for a class object?
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Implement __str__() or __repr__() in the class's metaclass.
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object):
__metaclass__ = MC
print C
Use __str__ if you mean a readable stringification, use __repr__ for unambigu...
figure of imshow() is too small
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If you don't give an aspect argument to imshow, it will use the value for image.aspect in your matplotlibrc. The default for this value in a new matplotlibrc is equal.
So imshow will plot your array with equal aspect ratio.
If you don't need an equal aspect you can set aspect to auto
imshow(ra...
Set time part of DateTime in ruby
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Within a Rails environment:
Thanks to ActiveSupport you can use:
DateTime.now.midnight
DateTime.now.beginning_of_day
OR
DateTime.now.change({ hour: 0, min: 0, sec: 0 })
# More concisely
DateTime.now.change({ hour: 0 })
Within a purely Ruby environmen...
How do I run two commands in one line in Windows CMD?
... Windows XP, Windows 2000, and some earlier NT versions. (4.0 at least, according to one commenter here.)
There are quite a few other points about this that you'll find scrolling down this page.
Historical data follows, for those who may find it educational.
Prior to that, the && syntax w...
How to use ArgumentCaptor for stubbing?
...g(SomeClass arg);
Mockito documentation says that you should not use captor in this way:
when(someObject.doSomething(argumentCaptor.capture())).thenReturn(true);
assertThat(argumentCaptor.getValue(), equalTo(expected));
Because you can just use matcher during stubbing:
when(someObject.doSomet...
How can I check if string contains characters & whitespace, not just whitespace?
...re is no native way to detect thing in js? is there no string.IsWhitespace or something? Is there no native trim either?
– JonnyRaa
Feb 6 '14 at 17:08
5
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sed command with -i option failing on Mac, but works on Linux
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If you use the -i option you need to provide an extension for your backups.
If you have:
File1.txt
File2.cfg
The command (note the lack of space between -i and '' and the -e to make it work on new versions of Mac and on GNU):
sed -i'.original' -e 's/old_link/new_link/g' *
Crea...
Python: finding an element in a list [duplicate]
... index of an element in a list in Python?
Note that the list may not be sorted.
10 Answers
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vim and NERD Tree extension - adding a file
When using the vim editor with the NERDTree plugin to navigate through the tree of your project, is there an easy way to create a new source code file under the currently highlighted directory?
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