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How can I repeat a character in Bash?

... 410 You can use: printf '=%.0s' {1..100} How this works: Bash expands {1..100} so the command be...
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Add a common Legend for combined ggplots

... 108 Update 2015-Feb See Steven's answer below df1 <- read.table(text="group x y gro...
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How to plot two histograms together in R?

...gle numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers). ...
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Convert an image to grayscale in HTML/CSS

.../* Disable grayscale on hover */ img:hover { -webkit-filter: grayscale(0); filter: none; } <img src="http://lorempixel.com/400/200/"> What about Internet Explorer 10? You can use a polyfill like gray. ...
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how to convert array values from string to int?

... | edited Apr 23 '19 at 10:46 Rahul 16.8k77 gold badges3434 silver badges5353 bronze badges answered Ma...
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How can I add a box-shadow on one side of an element?

...the box-shadow rule: .myDiv { border: 1px solid #333; width: 100px; height: 100px; box-shadow: 10px 0 5px -2px #888; } <div class="myDiv"></div> The fourth property there -2px is the shadow spread, you can use it to change the spread of the shadow, making it a...
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Is this a “good enough” random algorithm; why isn't it used if it's faster?

... QuickRandom qr = new QuickRandom(); int[] frequencies = new int[10]; for (int i = 0; i < 100000; i++) { frequencies[(int) (qr.random() * 10)]++; } printDistribution("QR", frequencies); frequencies = new int[10]; for (int i = 0; i <...
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Black transparent overlay on image hover with only CSS?

... the img element itself, see. .image { position: relative; width: 400px; height: 400px; } Give the child img element a width of 100% of the parent and add vertical-align:top to fix the default baseline alignment issues. .image img { width: 100%; vertical-align: top; } As for th...
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?

what does -webkit-transform: translate3d(0,0,0); exactly do? Does it have any performance issues? Should I just apply it to the body or individual elements? It seems to improve scroll events drastically. ...
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How to make Twitter bootstrap modal full screen

...d this in Bootstrap 3 with the following code: .modal-dialog { width: 100%; height: 100%; margin: 0; padding: 0; } .modal-content { height: auto; min-height: 100%; border-radius: 0; } In general, when you have questions about spacing / padding issues, try right+clicking (or cmd+cl...