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Aggregate / summarize multiple variables per group (e.g. sum, mean)
r
r-faq
dataframe
aggregate
data.table
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Why does a RegExp with global flag give wrong results?
javascript
regex
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Relative imports for the billionth time
python
import
relative-path
python-packaging
relative-import
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javascript function doesn't work when link is clicked
javascript
html
iframe
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How to use PHP's password_hash to hash and verify passwords
php
salt
password-hash
php-password-hash
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