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Append a NumPy array to a NumPy array
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Well, the error message says it all: NumPy arrays do not have an append() method. There's a free function numpy.append() however:
numpy.append(M, a)
This will create a new array instead of mutating M in place. Note that using numpy.append() involves c...
Rails Admin vs. ActiveAdmin [closed]
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I vote for rails_admin. I like its looks and the fact that out of the box all the models are available for administration. The history feature is quite useful too.
Any project with Yehuda Katz as a mentor should be a safe bet.
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Replacing blank values (white space) with NaN in pandas
I want to find all values in a Pandas dataframe that contain whitespace (any arbitrary amount) and replace those values with NaNs.
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jQuery Validate - require at least one field in a group to be filled
..." you will see an example. I take it one step further: I declare an array called "rules", then separately, I use them with var validator = $('#formtovalidate').validate(rules);
– Nathan Long
Sep 28 '09 at 11:42
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Volatile vs Static in Java
Is it correct to say that static means one copy of the value for all objects and volatile means one copy of the value for all threads?
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CSS media queries: max-width OR max-height
...iting. It's been a good chance to learn myself! Take the time to systematically read though and I hope it will be helpful.
Media Queries
Media queries essentially are used in web design to create device- or situation-specific browsing experiences; this is done using the @media declaration within...
Drawing a dot on HTML5 canvas [duplicate]
...ript> tags. That is it works if I put it in the body but I like to have all my script code in the <head> section of my HTML.
– Doug Hauf
Feb 20 '14 at 18:59
10
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How to run Rake tasks from within Rake tasks?
...method?
task :build => [:some_other_tasks] do
build
end
task :build_all do
[:debug, :release].each { |t| build t }
end
def build(type = :debug)
# ...
end
If you'd rather stick to rake's idioms, here are your possibilities, compiled from past answers:
This always executes the task, bu...
Difference between Visibility.Collapsed and Visibility.Hidden
...have focus, you can't navigate to the control using the TAB key, etcetera, all of which still can if it would have a height and width of zero. But again, in terms of layout, you could say that.
– Razzie
May 20 '09 at 8:45
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How to upgrade Git on Windows to the latest version?
...1.7.9.mysysgit.0. I downloaded the new version from the Git site and installed through the normal Git installer EXE.
14 A...