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Mean per group in a data.frame [duplicate]
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I describe two ways to do this, one based on data.table and the other based on reshape2 package . The data.table way already has an answer, but I have tried to make it cleaner and more detailed.
The data is like this:
d <- structure(list(Name = structure...
What's the difference between REST & RESTful
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REST based Services/Architecture vs. RESTFUL Services/Architecture
To differentiate or compare these 2, you should know what REST is.
REST (REpresentational State Transfer) is basically an architectural style of development having...
ASP.NET MVC 3 Razor: Include JavaScript file in the head tag
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Yes, I was looking at WebPageBase and had guessed that that might be the answer, but didn't quite know the proper syntax. Can you recommended a reference guide for the MVC 3? Regards..
– Stephen Patten
Nov 30 '10 at...
How do I check if an integer is even or odd? [closed]
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fortran
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answered Oct 2 '08 at 9:52
PierrePierre...
Add string in a certain position in Python
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If you want many inserts
from rope.base.codeanalyze import ChangeCollector
c = ChangeCollector(code)
c.add_change(5, 5, '<span style="background-color:#339999;">')
c.add_change(10, 10, '</span>')
rend_code = c.get_changed()
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Requirejs domReady plugin vs Jquery $(document).ready()?
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Send email with PHPMailer - embed image in body
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Array include any value from another array?
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bool to int conversion
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How can I convert byte size into a human-readable format in Java?
...ink every one should note that in your project customer want see values in base 2 (devided by 1024) but with common prefix. Not KiB, MiB, GiB etc. Use KB, MB, GB, TB for it.
– Borys
May 23 '13 at 13:33
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