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Should I use a data.frame or a matrix?
...re more convenient if you frequently refer to its columns by name (via the compact $ operator).
Data frames are also IMHO better for reporting (printing) tabular information as you can apply formatting to each column separately.
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How to add images to README.md on GitHub?
... image if it's stored in your repository. i.e.
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What text editor is available in Heroku bash shell? [closed]
...a heroku cli plugin.
Just install:
heroku plugins:install https://github.com/naaman/heroku-vim
And use:
heroku vim
The heroku vim command will drop you into a bash shell with vim installed on your $PATH. All you have to do is retrain your fingers to type heroku vim instead of heroku run bash.
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CSS triangle custom border color
...this. I would like to steer clear of javascript and css3 simply because of compatibility. I am trying to have the triangle have a white background with a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far:
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Extending the User model with custom fields in Django
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The least painful and indeed Django-recommended way of doing this is through a OneToOneField(User) property.
Extending the existing User model
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If you wish to store information related to User, you can use a one-to-one relationship to a model containing the f...
What is the fastest integer division supporting division by zero no matter what the result is?
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Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
int f (int x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the ...
How to generate a Dockerfile from an image?
.... Parameter -sV=1.36 is not always required.
Reference: https://hub.docker.com/repository/docker/alpine/dfimage
below is the old answer, it doesn't work any more.
$ docker pull centurylink/dockerfile-from-image
$ alias dfimage="docker run -v /var/run/docker.sock:/var/run/docker.sock --rm centurylink...
OS specific instructions in CMAKE: How to?
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@rchilton1980: Page moved, new link: gitlab.kitware.com/cmake/community/wikis/doc/cmake/…
– schnaader
Sep 10 '18 at 13:09
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