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Overlaying histograms with ggplot2 in R
I am new to R and am trying to plot 3 histograms onto the same graph.
Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off.
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Sass - Converting Hex to RGBa for background opacity
I have the following Sass mixin, which is a half complete modification of an RGBa example :
5 Answers
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What is the difference between “px”, “dip”, “dp” and “sp”?
What is the difference between Android units of measure?
33 Answers
33
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Java 8: performance of Streams vs Collections
I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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“x not in y” or “not x in y”
When testing for membership, we can use:
6 Answers
6
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Extract a regular expression match
I'm trying to extract a number from a string.
12 Answers
12
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How to sort a file, based on its numerical values for a field?
Example file.txt :
8 Answers
8
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Running a cron job at 2:30 AM everyday
How to configure a cron job to run every night at 2:30? I know how to make it run at 2, but not 2:30.
6 Answers
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Java 8 Stream and operation on arrays
I have just discovered the new Java 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
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“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
I'm developing a page that pulls images from Flickr and Panoramio via jQuery's AJAX support.
17 Answers
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