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Applying function with multiple arguments to create a new pandas column
I want to create a new column in a pandas data frame by applying a function to two existing columns. Following this answer I've been able to create a new column when I only need one column as an argument:
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Xcode variables
...quotes) as the first line of your bash shell script (or the equivalent command for the shell you're using) and build your project. This will output all of the environment variables that are available to you. You can use this in conjunction with the documentation to make sure you're getting the data ...
CSS: transition opacity on mouse-out?
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You're applying transitions only to the :hover pseudo-class, and not to the element itself.
.item {
height:200px;
width:200px;
background:red;
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-ms-transition: opacity 1s ease-in-out;
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CSS selector with period in ID
...ng through all the specs writing the question, I read through it some more and found there is an escape character. I've never needed it before, but the CSS spec does allow for backslash (\) escaping like most languages. What do you know?
So in my example, the following rule would match:
#some\.id ...
Rollback a Git merge
...before_merge> with git reflog, git log, or, if you're feeling the moxy (and haven't done anything else): git reset --hard HEAD@{1}
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Git undo changes in some files [duplicate]
...to the index or committed them, then you just want to use the checkout command - this will change the state of the working copy to match the repository:
git checkout A
If you added it to the index already, use reset:
git reset A
If you had committed it, then you use the revert command:
# the ...
String formatting: % vs. .format vs. string literal
... slightly different syntax from the existing % operator. Which is better and for what situations?
16 Answers
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How do I get ruby to print a full backtrace instead of a truncated one?
... Ah, I found out about that shortly after posting this answer and forgot to update it. Thanks
– anonymous coward
Jan 24 '12 at 10:53
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Pretty-Print JSON in Java
I'm using json-simple and I need to pretty-print JSON data (make it more human readable).
18 Answers
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showDialog deprecated. What's the alternative?
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From http://developer.android.com/reference/android/app/Activity.html
public final void showDialog (int id) Added in API level 1
This method was deprecated in API level 13. Use the new DialogFragment
class with FragmentManager instead; ...