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Convert Pandas column containing NaNs to dtype `int`
I read data from a .csv file to a Pandas dataframe as below. For one of the columns, namely id , I want to specify the column type as int . The problem is the id series has missing/empty values.
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What is the difference between range and xrange functions in Python 2.X?
...range creates a list, so if you do range(1, 10000000) it creates a list in memory with 9999999 elements.
xrange is a sequence object that evaluates lazily.
In Python 3, range does the equivalent of python's xrange, and to get the list, you have to use list(range(...)).
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How do I read from parameters.yml in a controller in symfony2?
I have put a couple of custom variables in my app/config/parameters.yml.
7 Answers
7
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Dialog with transparent background in Android
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If you're inside a DialogFragment, just call getDialog().getWindow() ... (after the view was created, e.g. in your onViewCreated callback).
– akohout
Feb 9 '15 at 13:10
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How to use null in switch
In the code above I cant use null in switch case statement. How can I do this differently?
I can't use default because then I want to do something else.
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Email address validation using ASP.NET MVC data type attributes
I have some problems with the validation of a Email.
10 Answers
10
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How to use PyCharm to debug Scrapy projects
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The scrapy command is a python script which means you can start it from inside PyCharm.
When you examine the scrapy binary (which scrapy) you will notice that this is actually a python script:
#!/usr/bin/python
from scrapy.cmdline import execute
execute()
This mea...
How can I sort arrays and data in PHP?
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Basic one dimensional arrays
$array = array(3, 5, 2, 8);
Applicable sort functions:
sort
rsort
asort
arsort
natsort
natcasesort
ksort
krsort
The difference between those is merely whether key-value associations are kept (the "a" funct...
“Code too large” compilation error in Java
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A single method in a Java class may be at most 64KB of bytecode.
But you should clean this up!
Use .properties file to store this data, and load it via java.util.Properties
You can do this by placing the .properties file on your c...
jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
... web.xml , but when I start my Tomcat 7 server I am getting the following message:
12 Answers
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