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How to combine multiple conditions to subset a data-frame using “OR”?
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my.data.frame <- subset(data , V1 > 2 | V2 < 4)
An alternative solution that mimics the behavior of this function and would be more appropriate for inclusion within a function body:
new.data <- data[ which( data$V1 > 2 | data$V2 < 4) , ]
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
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Add a number to each selection in Sublime Text 2, incremented once per selection
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331
I recommend the plugin Text Pastry. The Number Sequence command is the one you need.
I prefer t...
How do I get logs/details of ansible-playbook module executions?
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114
If you pass the -v flag to ansible-playbook on the command line, you'll see the stdout and std...
How to prevent Browser cache for php site
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answered Nov 30 '12 at 6:33
CodesenCodesen
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if, elif, else statement issues in Bash
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edited Aug 7 '19 at 5:48
U. Windl
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answered Apr 16 ...
How do I properly compare strings in C?
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edited Sep 20 '15 at 5:57
Jonathan Leffler
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How do I create/edit a Manifest file?
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127
In Visual Studio 2010, 2012, 2013, 2015 and 2017 you can add the manifest file to your project...
SQLite select where empty?
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answered Sep 1 '10 at 18:06
GuffaGuffa
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How do I auto-hide placeholder text upon focus using css or jquery?
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edited Aug 17 '17 at 8:10
C.d.
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