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Converting RGB to grayscale/intensity
...ic weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
8 Answers
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How can I scale the content of an iframe?
...ra and Safari if you change the CSS to:
<style>
#wrap { width: 600px; height: 390px; padding: 0; overflow: hidden; }
#frame { width: 800px; height: 520px; border: 1px solid black; }
#frame {
-ms-zoom: 0.75;
-moz-transform: scale(0.75);
-moz-transform-origin...
Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
I want to toggle a variable between 0 and 1. If it's 0 I want to set it to 1, else if it's 1 I want to set it to 0.
31 Answ...
Modify SVG fill color when being served as Background-Image
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edited Dec 21 '18 at 0:15
David Neto
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answered ...
Replace all 0 values to NA
I have a dataframe with some numeric columns. Some row has a 0 value which should be considered as null in statistical analysis. What is the fastest way to replace all the 0 value to NULL in R?
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Is there a standard sign function (signum, sgn) in C/C++?
...+ version yet:
template <typename T> int sgn(T val) {
return (T(0) < val) - (val < T(0));
}
Benefits:
Actually implements signum (-1, 0, or 1). Implementations here using copysign only return -1 or 1, which is not signum. Also, some implementations here are returning a float (or...
How do you round a number to two decimal places in C#?
... 2); //returns 1.99
decimal b = 1.995555M;
Math.Round(b, 2); //returns 2.00
You might also want to look at bankers rounding / round-to-even with the following overload:
Math.Round(a, 2, MidpointRounding.ToEven);
There's more information on it here.
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Can a class member function template be virtual?
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answered Mar 1 '10 at 8:52
sbisbi
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Semi-transparent color layer over background-image?
... position: relative;
}
.layer {
background-color: rgba(248, 247, 216, 0.7);
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
HTML for this:
<div class="background">
<div class="layer">
</div>
</div>
Of course you need to ...
remove None value from a list without removing the 0 value
...
10 Answers
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