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Add legend to ggplot2 line plot

... about legends in ggplot2. I managed to plot three lines in the same graph and want to add a legend with the three colors used. This is the code used ...
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Import and Export Excel - What is the best library? [closed]

...pplications in C#, we take a certain data collection (SubSonic collection) and export it to Excel. We also want to import Excel files in a specific format. I'm looking for a library I can use for this purpose. ...
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Text size and different android screen sizes

...ll find how there suggesting for using dimens.xml for different devices of android for Example see Below structure : res/values/dimens.xml res/values-small/dimens.xml res/values-normal/dimens.xml res/values-large/dimens.xml res/values-xlarge/dimens.xml for Example you have used below dimens.x...
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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网

...rgraduate Advanced Project in the MIT Department of Electrical Engineering and Computer Science. Funding to support this work was provided by Google ATAP Introduction App Inventor is a visual “blocks” based language for programming Android apps. It gives users the ability to easily learn, crea...
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Make absolute positioned div expand parent div height

... width: 145px; float: left; } Finally, add a clearfix to the parent and you're done (see the fiddle for the complete solution). Generally, as long as the element with absolute position is positioned at the top of the parent element, chances are good that you find a workaround by floating the...
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Dynamic Anonymous type in Razor causes RuntimeBinderException

... is a poor .NET framework design decision, in my opinion. Here is a quick and nice extension to fix this problem i.e. by converting the anonymous object into an ExpandoObject right away. public static ExpandoObject ToExpando(this object anonymousObject) { IDictionary<string, object> anon...
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In Intellij IDEA how do I replace text with a new line?

Say I wanted to replace all commas with commas and a new line using Intellij IDEA's replace function. What do I put in the search box? In vim I'd use &\r ...
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How can I respond to the width of an auto-sized DOM element in React?

I have a complex web page using React components, and am trying to convert the page from a static layout to a more responsive, resizable layout. However, I keep running into limitations with React, and am wondering if there's a standard pattern for handling these issues. In my specific case, I have ...
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SQL Joins Vs SQL Subqueries (Performance)?

...PECT the first query to be quicker, mainly because you have an equivalence and an explicit JOIN. In my experience IN is a very slow operator, since SQL normally evaluates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...). As with ALL THINGS SQL though, your mileage may va...
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Convert UNIX epoch to Date object

I'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion? ...