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Plotting two variables as lines using ggplot2 on the same graph

A very newbish question, but say I have data like this: 5 Answers 5 ...
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Convert an ISO date to the date format yyyy-mm-dd in JavaScript

... MritunjayMritunjay 21.4k66 gold badges4444 silver badges6363 bronze badges ...
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Batch Renaming of Files in a Directory

...ir, titlePattern % title + ext)) You could then use it in your example like this: rename(r'c:\temp\xx', r'*.doc', r'new(%s)') The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension). ...
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What is the maximum length of data I can put in a BLOB column in MySQL?

... A BLOB can be 65535 bytes (64 KB) maximum. If you need more consider using: a MEDIUMBLOB for 16777215 bytes (16 MB) a LONGBLOB for 4294967295 bytes (4 GB). See Storage Requirements for String Types for more info. ...
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Detecting iOS / Android Operating system

... application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple/Android/Other[not supported]) and modify my elements based on that value. ...
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How to round the minute of a datetime object

... the 'floor' of a datetime object stored in tm rounded to the 10 minute mark before tm. tm = tm - datetime.timedelta(minutes=tm.minute % 10, seconds=tm.second, microseconds=tm.microsecond) If you want classic rounding to the nearest 10 min...
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How to randomly select an item from a list?

... Pēteris CaunePēteris Caune 36.6k66 gold badges5151 silver badges7676 bronze badges ...
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When to use a key/value store such as Redis instead/along side of a SQL database?

I have read great things about key/value stores such as Redis but I can't seem to figure out when it's time to use it in an application. ...
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How do you obtain a Drawable object from a resource id in android package?

...y on an image button. Is there a way to use the code below (or something like it) to get an object from the android.R.drawable.* package? ...
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Hide Spinner in Input Number - Firefox 29

On Firefox 28, I'm using <input type="number"> works great because it brings up the numerical keyboard on input fields which should only contain numbers. ...