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Convert UNIX epoch to Date object
I'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
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Turn Pandas Multi-Index into column
...The reset_index() is a pandas DataFrame method that will transfer index values into the DataFrame as columns. The default setting for the parameter is drop=False (which will keep the index values as columns).
All you have to do add .reset_index(inplace=True) after the name of the DataFrame:
df.re...
SQL function as default parameter value?
I tried changing a default parameter value with this:
6 Answers
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express 4.0 , express-session with odd warning message
I am trying to work through setting up a nodejs app using express 4.x. After stumbling through the middleware-removal issues, I finally got it working.
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How to use the CSV MIME-type?
In a web application I am working on, the user can click on a link to a CSV file. There is no header set for the mime-type, so the browser just renders it as text. I would like for this file to be sent as a .csv file, so the user can directly open it with calc, excel, gnumeric, etc.
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How to test if one java class extends another at runtime?
How to I test if a is a subclass of b ?
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git ignore all files of a certain type, except those in a specific subfolder
I have a directory structure like this:
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How do you turn off auto-capitalisation in HTML form fields in iOS?
By default, iOS’s keyboard sets the first letter in text form fields (including type=email ) to uppercase. (At least prior to iOS 5.)
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Update all values of a column to lowercase
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See http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_lower
UPDATE table_name SET tag = LOWER(tag)
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Install parent POM without building Child modules
I have a parent POM in a Maven project, with this structure:
2 Answers
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