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Specifying colClasses in the read.csv
I am trying to specify the colClasses options in the read.csv function in R. In my data, the first column "time" is basically a character vector while the rest of the columns are numeric.
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Determine if ActiveRecord Object is New
How can I check if an ActiveRecord object is new or is already persisted?
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ruby convert array into function arguments
Say I have an array. I wish to pass the array to a function. The function, however, expects two arguments. Is there a way to on the fly convert the array into 2 arguments?
For example:
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Why can I not push_back a unique_ptr into a vector?
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Template function inside template class
I have this code:
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How does _gaq.push(['_trackPageLoadTime']) work?
How does the Google Analytics Site Speed feature, _gaq.push(['_trackPageLoadTime']) , work? Is there any documentation about how it works?
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vim and NERD Tree extension - adding a file
When using the vim editor with the NERDTree plugin to navigate through the tree of your project, is there an easy way to create a new source code file under the currently highlighted directory?
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Can you avoid Gson converting “” into unicode escape sequences?
I noticed that Gson converts the string "
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How to add multiple objects to ManyToMany relationship at once in Django ?
Based on the Django doc, I should be able to pass multiple objects at once to be added to a manytomany relationship but I get a
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