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Java `final` method: what does it promise?
...hod can be defined to be final , to mark that this method may not be overridden:
5 Answers
...
How to exclude certain directories/files from git grep search
...s entirely within (modern versions of) git now.
– David
Nov 16 '15 at 15:12
Why the downvotes? This answer still appli...
Add missing dates to pandas dataframe
...
You could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-2013')
s = pd.Series({'09-02-2013': 2,
'09-03-2013': 10,
'09-06-2013': 5,
'09-07-2013': 1})
s.index = pd.DatetimeIndex(s.index)
s = s.rei...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
... figures.
methods of the Figure class
Additionally, the Figure class provides methods for clearing figures.
I'll assume in the following that fig is an instance of a Figure:
fig.clf() clears the entire figure. This call is equivalent to plt.clf() only if fig is the current figure.
fig.clear() is...
Change values while iterating
... {href http://www.google.com}]}
{[{key value} {href something}]}
This avoids creating a--possibly large--copy of type Attribute values, at the expense of slice bounds checks. In your example, type Attribute is relatively small, two string slice references: 2 * 3 * 8 = 48 bytes on a 64-bit architec...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...
Newer .Net Docs now has a table to help you decide which is best to use in your situation.
From MSDN's "New Recommendations for Using Strings in Microsoft .NET 2.0"
Summary: Code owners previously using the InvariantCulture for string comparison, casing, and sorting ...
How can you diff two pipelines in Bash?
...
In bash you can use subshells, to execute the command pipelines individually, by enclosing the pipeline within parenthesis. You can then prefix these with < to create anonymous named pipes which you can then pass to diff.
For example:
diff <(foo | bar) <(baz | quux)
The anonymous ...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
The section "Avoid Enums Where You Only Need Ints" was removed from the official developer documentation . (See Why doesn't Android use more enums? for the old section content)
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System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second
...nge the timer once the work has completed, not before. Example:
private void Callback( Object state )
{
// Long running operation
_timer.Change( TIME_INTERVAL_IN_MILLISECONDS, Timeout.Infinite );
}
Thus there is no need for locking mechanisms because there is no concurrency. The timer will...
Specifying and saving a figure with exact size in pixels
...e(figsize=(800/my_dpi, 800/my_dpi), dpi=my_dpi)
So you basically just divide the dimensions in inches by your DPI.
If you want to save a figure of a specific size, then it is a different matter. Screen DPIs are not so important anymore (unless you ask for a figure that won't fit in the screen). ...