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General suggestions for debugging in R

...function you would find useful to have run. And another two methods from one of @Shane's links: Wrap an inner function call with try() to return more information on it. For *apply functions, use .inform=TRUE (from the plyr package) as an option to the apply command @JoshuaUlrich also pointed o...
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Difference between add(), replace(), and addToBackStack()

... Can a fragment container contains more than one fragment, If yes than how replace() method will behave. WIll it replace all the frgaments in that container or android api have a method that accept three arguments, i.e. frgamentContainer, new fragment and with whom to r...
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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?

... @ronnieaka: I'm guessing that the language designers felt that in one case (i += j), it is safer to assume that the loss of precision is desired as opposed to the other case (i = i + j) – Lukas Eder Sep 22 '12 at 8:31 ...
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sqlite database default time value 'now'

... example the timestamp (created_at-column) is saved as unix epoch UTC timezone and converted to local timezone only when necessary. Using unix epoch saves storage space - 4 bytes integer vs. 24 bytes string when stored as ISO8601 string, see datatypes. If 4 bytes is not enough that can be increased...
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Performance optimization strategies of last resort [closed]

...ds. Now it is harder to find obvious culprits, but there are a few smaller ones that I can do something about, and the time drops to 13 sec. Now I seem to have hit a wall. The samples are telling me exactly what it is doing, but I can't seem to find anything that I can improve. Then I reflect on t...
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UITableViewCell with UITextView height in iOS 7?

...oat and return the height needed Detailed Solution Since I have recently done something similar, I thought I would also share some solutions to the connected Issues I encountered. I hope it will help somebody. This is far more in depth and will cover the following: Of course: setting the height of...
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Push local Git repo to new remote including all branches and tags

...ur tags: git push REMOTE --tags Finally, I think you can do this all in one command with: git push REMOTE --mirror However, in addition --mirror, will also push your remotes, so this might not be exactly what you want. ...
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With arrays, why is it the case that a[5] == 5[a]?

...ited Nov 30 '16 at 10:47 Marco Bonelli 41.5k1616 gold badges8585 silver badges9999 bronze badges answered Dec 19 '08 at 17:04 ...
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Symbolic links and synced folders in Vagrant

...s to be wrong with their default value for rsync__args (specifically, that one of the default args, --copy-links, seems to be breaking another, --archive, at least as far as copying broken symlinks is concerned). share ...
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What is

... It means that T must implement Comparable<T itself or one of T's superclasses> The sense is that because SortedList is sorted, it must know how to compare two classes of its generics T parameter. That's why T must implement Comparable<T itself or one of T's superclasses&gt...