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Pandas conditional creation of a series/dataframe column
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If you only have two choices to select from:
df['color'] = np.where(df['Set']=='Z', 'green', 'red')
For example,
import pandas as pd
import numpy as np
df = pd.DataFrame({'Type':list('ABBC'), 'Set':list('ZZXY')})
df['color'] = np.where(df['Set']=='Z', ...
Changing the background drawable of the searchview widget
...you can do with background of items in ActionBar dropdown. This is because selectableItemBackground is listed as styleable in R.stylable, whereas searchViewTextField (theme attribute that we're interested in) is not. Thus, we cannot access it easily from within XML resources (you'll get a No resourc...
How to avoid null checking in Java?
...t that it cannot be null, and that's it.
Example:
public String getFirst3Chars(String text) {
return text.subString(0, 3);
}
However, if your method just passes the value on, and the next method passes it on etc. it could get problematic. In that case you may want to check the argument as abov...
Storyboard warning: prototype table cells must have reuse identifiers
...me to this one:
<tableViewCell contentMode="scaleToFill" selectionStyle="blue" accessoryType="disclosureIndicator" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" reuseIdentifier="GenericCellID" id="kBr-Qn-Tki">
Please pay your attention on reuseIden...
Why does installing Nokogiri on Mac OS fail with libiconv is missing?
...ed to install xCode command tools to allow you to install libiconv.
xcode-select --install
then install a newer version of libiconv
brew install libiconv
then install your gem
gem install nokogiri -- --with-iconv-dir=/usr/local/Cellar/libiconv/1.14
...
Change font size macvim?
...s - you can use set guifont=* which will bring up a font-picker for you to select from the available fonts on the system. It might be OSX and Linux only, but preferable to having to enter it manually.
Once you've selected the font, you can use set guifont again which will print out the name of the ...
Should I return a Collection or a Stream?
...seems to have adopted this naming idiom, though not exclusively. Consider: CharSequence.chars() and .codePoints(), BufferedReader.lines(), and Files.lines() existed in Java 8. In Java 9, the following have been added: Process.children(), NetworkInterface.addresses(), Scanner.tokens(), Matcher.result...
Shortest distance between a point and a line segment
...community wiki
5 revs, 3 users 97%char m
1
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Is it possible to open a Windows Explorer window from PowerShell?
...tion looking for a way to open an Explorer window from PowerShell and also select a file. I'm adding this answer in case others come across it for the same reason.
To launch Explorer and select a file, use Invoke-Expression:
Invoke-Expression "explorer '/select,$filePath'"
There are probably oth...
Asp.net - Add blank item at top of dropdownlist
...drpList.Items.Insert(0, new ListItem(String.Empty, String.Empty));
drpList.SelectedIndex = 0;
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