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Add new row to dataframe, at specific row-index, not appended?
The following code combines a vector with a dataframe:
4 Answers
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SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/
I am trying to do the Michael Hartl tutorial. When I attempt to install rails 3.2.14 in my gemset, I get the following issue:
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How to read file from relative path in Java project? java.io.File cannot find the path specified
I have a project with 2 packages:
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Placing/Overlapping(z-index) a view above another view in android
I have a linear layout which consists of imageview and textview , one below another in a linear layout.
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What is the argument for printf that formats a long?
The printf function takes an argument type, such as %d or %i for a signed int . However, I don't see anything for a long value.
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Using Regex to generate Strings rather than match them
I am writing a Java utility which helps me to generate loads of data for performance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is th...
to_string is not a member of std, says g++ (mingw)
I am making a small vocabulary remembering program where words would would be flashed at me randomly for meanings. I want to use standard C++ library as Bjarne Stroustroup tells us, but I have encountered a seemingly strange problem right out of the gate.
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PHP Multidimensional Array Searching (Find key by specific value)
I have this multidimensional array. I need to search it and return only the key that matches the value of the "slug". I know there are other threads about searching multidimensional arrays, but I'm not really understanding enough to apply to my situation. Thanks very much for any help!
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Get Substring between two characters using javascript
I am trying to extract a string from within a larger string where it get everything inbetween a ':' and a ';'.
16 Answers
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Naming conventions for java methods that return boolean(No question mark)
I like using question mark at the end of method/function names in other languages. Java doesn't let me do this. As a workaround how else can I name boolean returning methods in Java? Using an is , has , should , can in the front of a method sound okay for some cases. Is there a better way to na...