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What is your preferred style for naming variables in R? [closed]

... Good previous answers so just a little to add here: underscores are really annoying for ESS users; given that ESS is pretty widely used you won't see many underscores in code authored by ESS users (and that set includes a bunch of R Core as well as CRAN authors, excptions like Hadley notwithsta...
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Request is not available in this context

...on here: stackoverflow.com/questions/1790457/… – jball Mar 25 '10 at 17:55 6 Thanks. I had seen...
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Why does calling a function in the Node.js REPL with )( work?

Why is it possible to call function in JavaScript like this, tested with node.js: 3 Answers ...
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How to convert ActiveRecord results into an array of hashes

...d objects to Ruby Hashes despite its name tasks_records = TaskStoreStatus.all tasks_records = tasks_records.as_json # You can now add new records and return the result as json by calling `to_json` tasks_records << TaskStoreStatus.last.as_json tasks_records << { :task_id => 10, :sto...
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?

... With new_list = my_list, you don't actually have two lists. The assignment just copies the reference to the list, not the actual list, so both new_list and my_list refer to the same list after the assignment. To actually copy the list, you have various possibilit...
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How to delete or add column in SQLITE?

...upports a limited subset of ALTER TABLE. The ALTER TABLE command in SQLite allows the user to rename a table or to add a new column to an existing table. It is not possible to rename a column, remove a column, or add or remove constraints from a table. You can: create new table as the one you ar...
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Catching multiple exception types in one catch block

...fining the exceptions). Even given that there are exceptions you want to "fall through", you should still be able to define a hierarchy to match your needs. abstract class MyExceptions extends Exception {} abstract class LetterError extends MyExceptions {} class AError extends LetterError {} cla...
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PHP: Convert any string to UTF-8 without knowing the original character set, or at least try

I have an application that deals with clients from all over the world, and, naturally, I want everything going into my databases to be UTF-8 encoded. ...
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Is there a math nCr function in python? [duplicate]

... @Renato: what are you talking about? This answer isn't dangerous at all. Do you think that math.factorial returns a float, and not an arbitrary-precision integer, maybe? – DSM Mar 25 '13 at 19:03 ...
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Very Long If Statement in Python [duplicate]

...ther_long_identifier and here_is_another_long_identifier != and_finally_another_long_name): # ... your code here ... pass share | improve this answer | follo...