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Command-line Unix ASCII-based charting / plotting tool

Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph. ...
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What is the use of the @ symbol in PHP?

... I had time to correct my suppress spelling after posting ... and damn you for enhancing with a link at the same time rages :P – Aiden Bell Jun 23 '09 at 12:12 1 ...
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how do you filter pandas dataframes by multiple columns

... filter a dataframe (df) by a single column, if we consider data with male and females we might: 6 Answers ...
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setTimeout in for-loop does not print consecutive values [duplicate]

... i <= 2; ++i) doSetTimeout(i); If you don't do something like this (and there are other variations on this same idea), then each of the timer handler functions will share the same variable "i". When the loop is finished, what's the value of "i"? It's 3! By using an intermediating function,...
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Spring MVC - How to get all request params in a map in Spring controller?

...he HttpServletRequest object directly. The answer is actually quite simple and what you would expect if you're familiar with Spring MVC. @RequestMapping(value = {"/search/", "/search"}, method = RequestMethod.GET) public String search( @RequestParam Map<String,String> allRequestParams, ModelM...
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What are the differences between JSON and JavaScript object? [duplicate]

I am new to JSON and JavaScript objects. 3 Answers 3 ...
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Bootstrap NavBar with left, center or right aligned items

...te a navigation bar that has Logo A on the left, menu items in the center, and Logo B on the right? 10 Answers ...
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How do I validate a date string format in python?

...xcept? Python tends to slow down significantly when an exception is raised and caught. – chiffa Sep 6 '16 at 1:26 1 ...
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Is 0 a decimal literal or an octal literal?

... Yes, 0 is an Octal literal in C++. As per the C++ Standard: 2.14.2 Integer literals [lex.icon] integer-literal: decimal-literal integer-suffixopt octal-literal integer-suffixopt hexadecimal-literal integer-suffixopt decimal-literal: nonzero-digit ...
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When does invoking a member function on a null instance result in undefined behavior?

... Both (a) and (b) result in undefined behavior. It's always undefined behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute. The first thin...