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Multiple aggregations of the same column using pandas GroupBy.agg()
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cs95
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answered Nov 27 '12 at 20:57
bmubmu
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How do I set a variable to the output of a command in Bash?
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In addition to backticks `command`, command substitution can be done with $(command) or "$(command)", which I find easier to read, and allows for nesting.
OUTPUT=$(ls -1)
echo "${OUTPUT}"
MULTILINE=$(ls \
-1)
echo "${MULTIL...
Why does Twitter Bootstrap Use Pixels for Font Size?
...Well it seems that they are hiding behind the browser zoom excuse. Really sad to see such a heavily used and influential framework completely ignore accessibility issues and a fundamental cornerstone of responsive design. They are in a position of great responsibility and unfortunately seem to have ...
Verifying a specific parameter with Moq
...rate method, but I don't like to do this because it disrupts the flow of reading the test code.
Another option is to use a callback on the Setup call to store the value that was passed into the mocked method, and then write standard Assert methods to validate it. For example:
// Arrange
MyObject ...
Android: Difference between Parcelable and Serializable?
...standard Java interface. You can just implement Serializable interface and add override methods. The problem with this approach is that reflection is used and it is a slow process. This method creates a lot of temporary objects and causes quite a bit of garbage collection. However, Serializable inte...
Things possible in IntelliJ that aren't possible in Eclipse?
...lete in Java code:
interface Person {
String getName();
String getAddress();
int getAge();
}
//---
Person p;
String name = p.<CTRL-SHIFT-SPACE>
and it shows you ONLY getName(), getAddress() and toString() (only they are compatible by type) and getName() is first in the list beca...
Android ListView with different layouts for each row
...ent layouts for each row. I know how to create a custom row + custom array adapter to support a custom row for the entire list view, but how can I implement many different row styles in the ListView?
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What are some examples of commonly used practices for naming git branches? [closed]
...interacting with my group's CVS repository for several months, now. I've made an almost neurotic number of branches, most of which have thankfully merged back into my trunk. But naming is starting to become an issue. If I have a task easily named with a simple label, but I accomplish it in three ...
No == operator found while comparing structs in C++
... Anthony WilliamsAnthony Williams
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Re-raise exception with a different type and message, preserving existing information
...e”:
try:
frobnicate()
except KeyError as exc:
raise ValueError("Bad grape") from exc
The caught exception (exc, a KeyError) thereby becomes part of (is the “cause of”) the new exception, a ValueError. The “cause” is available to whatever code catches the new exception.
By using th...