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How to save a data.frame in R?
... are several ways. One way is to use save() to save the exact object. e.g. for data frame foo:
save(foo,file="data.Rda")
Then load it with:
load("data.Rda")
You could also use write.table() or something like that to save the table in plain text, or dput() to obtain R code to reproduce the tabl...
Why do you program in assembly? [closed]
I have a question for all the hardcore low level hackers out there. I ran across this sentence in a blog. I don't really think the source matters (it's Haack if you really care) because it seems to be a common statement.
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What is the difference between Reader and InputStream?
... between Reader and InputStream?
And when to use what?
If I can use Reader for reading characters why I will use inputstream, I guess to read objects?
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How do I detach objects in Entity Framework Code First?
...d and lazy loading works but entities are not tracked. This should be used for example if you want to load entity only to read data and you don't plan to modify them.
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Creating SolidColorBrush from hex color value
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
SQLite - replace part of a string
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You can use the built in replace() function to perform a string replace in a query.
Other string manipulation functions (and more) are detailed in the SQLite core functions list
The following should point you in the right direction.
UPDATE table SET field = replace( field...
Format LocalDateTime with Timezone in Java8
...ime is a date-time without a time-zone. You specified the time zone offset format symbol in the format, however, LocalDateTime doesn't have such information. That's why the error occured.
If you want time-zone information, you should use ZonedDateTime.
DateTimeFormatter FORMATTER = DateTimeFormatt...
Exclude folders from Eclipse search
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Here is what works for me (I'm using Helios - maybe this way was not available when this question was originally asked?)
Go to Project -> Properties -> Resource Filters.
Click Add.
Choose Filter type: Exclude all
Choose Applies to: Fold...
Why git keeps showing my changes when I switch branches (modified,added, deleted files) no matter if
.... Either commit first, run git checkout . to undo them, or run git stash before switching. (You can get your changes back with git stash apply)
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Linq select objects in list where exists IN (A,B,C)
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I would say that use HashSet instead of array for allowedStatus because HashSet's contains method is fastest and there'll be performance issues with array if it contains more than 1000 items. var allowedStatus = new HashSet<string> { "A", "B", "C" };
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