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Select multiple columns in data.table by their numeric indices

How can we select multiple columns using a vector of their numeric indices (position) in data.table ? 5 Answers ...
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How to increase the maximum number of opened editors in IntelliJ?

I am building a grails-app with IntelliJ 9.0 and I am a huge fan of the CTR+TAB shortcut that switches between active editors. ...
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How to revert Master branch to upstream

I have forked a git repository and setup upstream. I've made some changes in Master branch and committed and pushed to github. ...
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How can I recover a lost commit in Git?

First, got "your branch is ahead of origin/master by 3 commits" then my app has reverted to an earlier time with earlier changes. ...
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alternatives to REPLACE on a text or ntext datatype

I need to update/replace the data in datatable.column. The table has a field named Content . I'm using the REPLACE function. Since the column datatype is NTEXT , SQL Server doesn't allow me to use the REPLACE function. ...
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Convert to absolute value in Objective-C

How do I convert a negative number to an absolute value in Objective-C? 2 Answers 2 ...
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Syntax for if/else condition in SCSS mixin

Hi I'm trying to learn SASS/SCSS and am trying to refactor my own mixin for clearfix 3 Answers ...
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Converting Python dict to kwargs?

I want to build a query for sunburnt(solr interface) using class inheritance and therefore adding key - value pairs together. The sunburnt interface takes keyword arguments. How can I transform a dict ({'type':'Event'}) into keyword arguments (type='Event') ? ...
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Fixing the order of facets in ggplot

Data: 2 Answers 2 ...
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How can I programmatically create a new cron job?

I want to be able to programatically add a new cron job, what is the best way to do this? 18 Answers ...