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How to clear the cache in NetBeans
...ache\.
Clear the cache using the %USERPROFILE% Windows variable:
del /s /q %USERPROFILE%\AppData\Local\NetBeans\Cache\
If it is set, you can also use the environment variable %LOCALAPPDATA%:
del /s /q %LOCALAPPDATA%\NetBeans\Cache\
NetBeans 7.2+, Linux
Cache is at: ~/.cache/netbeans/${netbea...
What's the best way to use R scripts on the command line (terminal)?
...properly, but this seems to work:
axa@artemis:~$ cat r.test
#!/usr/bin/R -q -f
error
axa@artemis:~$ ./r.test
> #!/usr/bin/R -q -f
> error
Error: object "error" not found
Execution halted
axa@artemis:~$
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Why is the time complexity of both DFS and BFS O( V + E )
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But every vertex must be extracted from queue, and this is log(|Q|) What about this part?
– Yola
Jan 24 '16 at 10:56
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How to get duplicate items from a list using LINQ? [duplicate]
...duplicated in the source list, you could apply Distinct to the resulting sequence or use the solution given by Mark Byers.
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The identity used to sign the executable is no longer valid
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It works for me as well. command + Q to exit XCode and restart. Cheers!
– Joey
Aug 30 '13 at 4:38
9
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Run a single migration file
...just run the code directly out of the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which relies on the fact that require retu...
MySQL check if a table exists without throwing an exception
What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
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How to convert a Django QuerySet to a list
...tools
ids = set(existing_answer.answer.id for existing_answer in existing_question_answers)
answers = itertools.ifilter(lambda x: x.id not in ids, answers)
Read when QuerySets are evaluated and note that it is not good to load the whole result into memory (e.g. via list()).
Reference: itertools....
Generating a PNG with matplotlib when DISPLAY is undefined
...config/matplotlib'/matplotlibrc (as an example, seehttp://matplotlib.org/faq/troubleshooting_faq.html#locating-matplotlib-config-dir). See also matplotlib.org/users/customizing.html, which has an example config file at the bottom of the page. Find "agg" on that page and you'll see the config option ...
git reset --hard HEAD leaves untracked files behind
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My common command is git clean -qfdx here. Remove everything and do it silently.
– aragaer
May 25 '13 at 17:51
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