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Filter rows which contain a certain string
...)) or previously filter_at. The advantage is that you can easily extend to more than one column.
Below also a solution with filter_all in order to find the string in any column,
using diamonds as example, looking for the string "V"
library(tidyverse)
String in only one column
# for only one column....
How to get a specific “commit” of a gem from github?
... Simply because all of them (and .git/HEAD) are refs in git :). More: git-scm.com/book/en/v2/Git-Internals-Git-References
– medik
May 9 '17 at 12:04
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GridLayout and Row/Column Span Woe
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Delete all local changesets and revert to tree
...maybe that is too terse? Please send a mail to our mailinglist if you need more help! See: mercurial.selenic.com/wiki/MailingLists
– Martin Geisler
Jan 27 '10 at 0:06
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How to set NODE_ENV to production/development in OS X
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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...n errors, which are usually fatal, this is rarely the case so it's usually more appropriate to reuse the existing ConfigurationErrorsException type.
Prior to .NET 2.0, the recommendation was to use System.Configuration.ConfigurationException. ConfigurationException became obsolete in .NET 2.0, for...
WPF: Setting the Width (and Height) as a Percentage Value
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How to send a simple string between two programs using pipes?
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Probably processes which are related via one or more parent/child relations (e.g. includes siblings). The common ancestor would have created the two ends of the pipe. Unrelated processes lack that common ancestor.
– MSalters
Nov 5 '14...
PHP mkdir: Permission denied problem
...Ignter and developing in Ubuntu 14.14 Lts.. Could you please explain to me more thoughly the steps I need to do in order to fix this error ??? To give you some additional info: the absolute path is /opt/lampp/htdocs/www/my-app/public/uploads .. Basically what I'm trying to do is every logged in user...
What is a good Java library to zip/unzip files? [closed]
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