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What is the effect of encoding an image in base64?

If I convert an image (jpg or png) to base64, then will it be bigger, or will it have the same size? How much greater will it be? ...
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output

When using summarise with plyr 's ddply function, empty categories are dropped by default. You can change this behavior by adding .drop = FALSE . However, this doesn't work when using summarise with dplyr . Is there another way to keep empty categories in the result? ...
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Catching error codes in a shell pipe

I currently have a script that does something like 4 Answers 4 ...
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How to get commit history for just one branch?

Let's say I created a new branch my_experiment from master and made several commits to my_experiment . If I do a git log when on my_experiment , I see the commits made to this branch, but also the commits made to master before the my_experiments branch was created. ...
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How do I mock the HttpContext in ASP.NET MVC using Moq?

my base controller has an overrride of the Initialize that get's this requestContext. I am trying to pass this along but I am not doing something right. ...
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What is the difference between fastcgi and fpm?

I am trying to install php with fpm on macports. I read somewhere that fpm means FastCGI process manager. Does that mean fastcgi and fpm are same? If they are same, then why do we have two different macports variants for php namely "php5 +fastcgi" and "php5 +fpm" ...
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How to count the number of true elements in a NumPy bool array

I have a NumPy array 'boolarr' of boolean type. I want to count the number of elements whose values are True . Is there a NumPy or Python routine dedicated for this task? Or, do I need to iterate over the elements in my script? ...
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Is it possible to hide extension resources in the Chrome web inspector network tab?

When I'm viewing the downloaded resources for a page in the Chrome web inspector, I also see the HTML/JS/CSS requested by certain extensions. ...
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How to compare if two structs, slices or maps are equal?

I want to check if two structs, slices and maps are equal. 5 Answers 5 ...
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Declare slice or make slice?

In Go, what is the difference between var s []int and s := make([]int, 0) ? 4 Answers ...