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pandas: multiple conditions while indexing data frame - unexpected behavior

... As you can see, the AND operator drops every row in which at least one value equals -1. On the other hand, the OR operator requires both values to be equal to -1 to drop them. That's right. Remember that you're writing the condition in te...
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How to stop a JavaScript for loop?

I'm using this JavaScript to iterate through an array and find a matching array element: 4 Answers ...
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Difference between CC, gcc and g++?

...t are the difference between the 3 compilers CC, gcc, g++ when compiling C and C++ code in terms of assembly code generation, available libraries, language features, etc.? ...
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What is the MySQL VARCHAR max size?

...ySQL table has a maximum row size limit of 65,535 bytes, not counting BLOB and TEXT types. BLOB and TEXT columns only contribute 9 to 12 bytes toward the row size limit because their contents are stored separately from the rest of the row. Read more about Limits on Table Column Count and Row Size. ...
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WPF Command Line

I am trying to create a WPF application that takes command line arguments. If no arguments are given, the main window should pop up. In cases of some specific command line arguments, code should be run with no GUI and exit when finished. Any suggestions on how this should properly be done would be a...
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Cancel/kill window.setTimeout() before it happens

..., for example. I have a few of these that hang out for 10 seconds or more and if the user gets clicking around the action can occur at incorrect time intervals. ...
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How can we make xkcd style graphs?

...ly, folk have figured out how to make xkcd style graphs in Mathematica and in LaTeX . Can we do it in R? Ggplot2-ers? A geom_xkcd and/or theme_xkcd? ...
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What does the thread_local mean in C++11?

I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
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When should I use malloc in C and when don't I?

I understand how malloc() works. My question is, I'll see things like this: 6 Answers ...
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How do I select a merge strategy for a git rebase?

...xtra options that are understood by the chosen merge strategy. NB: "Ours" and "theirs" mean the opposite of what they do during a straight merge. In other words, "theirs" favors the commits on the current branch. share ...