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Show percent % instead of counts in charts of categorical variables
...for 'ggplot count vs percentage histogram' so hopefully this helps distill all the information currently housed in comments on the accepted answer.
Remark: If hp is not set as a factor, ggplot returns:
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Android Bitmap to Base64 String
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The problem with jeet's answer is that you load all bytes of the image into a byte array, which will likely crash the app in low-end devices. Instead, I would first write the image to a file and read it using Apache's Base64InputStream class. Then you can create the Base64...
How does password salt help against a rainbow table attack?
... attack. However, the methods I've seen to implement this don't seem to really make the problem harder.
10 Answers
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Under what conditions is a JSESSIONID created?
...s created/sent when session is created. Session is created when your code calls request.getSession() or request.getSession(true) for the first time. If you just want to get the session, but not create it if it doesn't exist, use request.getSession(false) -- this will return you a session or null. In...
how to exclude null values in array_agg like in string_agg using postgres?
...NC = fn_array_agg_notnull,
STYPE = ANYARRAY,
INITCOND = '{}'
);
Calling the second is (naturally) a little nicer looking than the first:
select array_agg_notnull(v) from x;
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How to export revision history from mercurial or git to cvs?
...en we finish or maybe every once in a while we want to commit our code and all of our revision history to cvs. We don't have write access to the project's cvs repo so we can't commit very frequently. What tool can we use to export our revision history to cvs? Currently we were thinking of using git ...
PHP json_encode encoding numbers as strings
...e of the json_encode() function is a string. Regarding the MySQL returning all fields as strings, yes I have also encountered this specifically with PDO. The way I see it you should always cast values you expect to be numeric to integer (or float) in PHP to make sure, do not trust MySQL or any other...
String vs. StringBuilder
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I like this answer a lot, especially the advice to code for clarity before performance. As developers, we spend as much or more time reading code as we do writing it.
– Scott Lawrence
Sep 16 '08 at 18:18
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What's the equivalent of use-commit-times for git?
...ion of "wrong" you are talking about.
It's WRONG.
It's STUPID.
And it's totally INFEASIBLE to implement.
(Note: small improvement: after a checkout, timestamps of up-to-date files are no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branch...
The Following Module was built either with optimizations enabled or without debug information
...ode on the non-web project in question and it's in Active(Debug). Deleted all items in my .NET 2.0 temp folder in Windows. Not sure what else to do here.
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