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Convert number strings with commas in pandas DataFrame to float
I have a DataFrame that contains numbers as strings with commas for the thousands marker. I need to convert them to floats.
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leading zeros in rails
I have fields hr and min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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HTML span align center not working?
I have some HTML:
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There can be only one auto column
How do I correct the error from MySQL 'you can only have one auto increment column'.
4 Answers
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Mark current Line, and navigate through marked lines
In Visual Studio, we can use:
CTRL+kk to place a marker on the current line
and
CTRL+kn to navigate through marked lines.
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Confusion between numpy, scipy, matplotlib and pylab
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Using Server.MapPath() inside a static field in ASP.NET MVC
I'm building an ASP.NET MVC site where I'm using Lucene.Net for search queries. I asked a question here about how to properly structure Lucene.Net usage in an ASP.NET MVC application and was told that the best method is to declare the my IndexWriter as public static , so that it can be re-used....