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Add legend to ggplot2 line plot
...plot three lines in the same graph and want to add a legend with the three colors used. This is the code used
3 Answers
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Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
Makefile经典教程（入门必备）Linux_Shell_Classic_tutorialmakefile很重要 什么是makefile？或许很多Winodws的程序员都不知道这个东西，因为那些Windows的IDE都为你做了这个工作，但我觉得要作
makefile。makefile带来的好处就是——“自动化...
How do you 'redo' changes after 'undo' with Emacs?
This article says that "Emacs has redo because you can reverse direction while undoing, thereby undoing the undo".
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Find the max of two or more columns with pandas
I have a dataframe with columns A , B . I need to create a column C such that for every record / row:
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Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
I want to create a C macro that creates a function with a name based
on the line number.
I thought I could do something like (the real function would have statements within the braces):
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How to get a reference to current module's attributes in Python
What I'm trying to do would look like this in the command line:
3 Answers
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Creating a new column based on if-elif-else condition
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SQLite - replace part of a string
Is it possible using SQL in an SQLite table to replace part of a string?
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Executing a command stored in a variable from PowerShell
I have a command that I have build and stored in a variable in PowerShell. This command works if I do a Write-Host and copy and paste into a standard cmd.exe window.
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