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Drop all duplicate rows across multiple columns in Python Pandas
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This is much easier in pandas now with drop_duplicates and the keep parameter.
import pandas as pd
df = pd.DataFrame({"A":["foo", "foo", "foo", "bar"], "B":[0,1,1,1], "C":["A","A","B","A"]})
df.drop_duplicates(subset=['A', 'C'], keep=False)
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What is the difference between properties and attributes in HTML?
...ibute value. type isn't a pure reflected property because it's limited to known values (e.g., the valid types of an input). If you had <input type="foo">, then theInput.getAttribute("type") gives you "foo" but theInput.type gives you "text".
In contrast, the value property doesn't reflect the ...
Renaming xcode 4 project and the actual folder
I know how to rename the project in Xcode 4, but how do you rename the source folder? The thing is that renaming the project in Xcode, does only rename within Xcode (Though it is progress compared to previous) - but why Xcode is not renaming the folder in the filesystem I don't know.
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How can I format a nullable DateTime with ToString()?
...alue property, and not on the dt2 object itself.
DateTime? dt2 = DateTime.Now;
Console.WriteLine(dt2.HasValue ? dt2.Value.ToString("yyyy-MM-dd hh:mm:ss") : "[N/A]");
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What data type to use for hashed password field and what length?
... works (will be implementing it later), but need to create database schema now.
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Fatal error: Class 'SoapClient' not found
...installs, and still it didn't work. It took a while to figure this out but now it works.
– SPRBRN
Jan 12 '16 at 11:50
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Extreme wait-time when taking a SQL Server database offline
... Studio is performing extremely slowly - on the order of 30 minutes plus now. I am just about at my wits end and I can't seem to find any references online as to what might be causing the speed problem, or how to fix it.
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Markdown open a new window link [duplicate]
...m trying to edit a website which uses a modx cms, and it's using Markdown. Now I would like to open a new link into another window.
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remove_if equivalent for std::map
...would work, but semantically, people often use for() for iterating over a known range, and while() for an unknown number of loops. Since the range is known in this case (from the beginning, to endIter), for() wouldn't be an unusual choice, and would probably be more common. But again, both would be ...
Python in Xcode 4+?
...longer work or are unclear due to changes in Xcode updates, please let me know. I will make the necessary corrections.
Open Xcode. The instructions for either are the same.
In the menu bar, click “File” → “New” → “New Project…”.
Select “Other” in the left pane, then "External...