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pandas: multiple conditions while indexing data frame - unexpected behavior
I am filtering rows in a dataframe by values in two columns.
3 Answers
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Difference between Service, Async Task & Thread?
...ync Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when?
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In Python, how can you load YAML mappings as OrderedDicts?
I'd like to get PyYAML 's loader to load mappings (and ordered mappings) into the Python 2.7+ OrderedDict type, instead of the vanilla dict and the list of pairs it currently uses.
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How can I limit a “Run Script” build phase to my release configuration?
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if [ "${CONFIGURATION}" = "Release" ]; then
echo Do something really release-like
fi
The script will run at the end of every configuration, but it won't do anything in this case unless the configuration is Release (assuming everything it does is contained within the test block).
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MySQL - why not index every field?
Recently I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question.
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difference between Product Backlog Item and Feature in Team Foundation work item types
I have a question about Microsoft Team Foundation. In Visual Studio, Team Explorer, I can create a new work item. Work item types here are dictated by your team's chosen process template; I'm not sure which process template we're using. In any case, in Team Explorer, when I want to create a new work...
File extension for PowerShell 3
... Update for 2014: This is still relevant now with Powershell 4. I think the 1 was really just to distinguish it from .ps (PostScript) files, but it made for a lot of confusion!
– evilspoons
Aug 20 '14 at 22:04
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How can I add a class attribute to an HTML element generated by MVC's HTML Helpers?
ASP.NET MVC can generate HTML elements using HTML Helpers, for example @Html.ActionLink() , @Html.BeginForm() and so on.
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What does dot (.) mean in a struct initializer?
...a C99 feature that allows you to set specific fields of the struct by name in an initializer. Before this, the initializer needed to contain just the values, for all fields, in order -- which still works, of course.
So for the following struct:
struct demo_s {
int first;
int second;
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CSS Input Type Selectors - Possible to have an “or” or “not” syntax?
If they exist in programming),
2 Answers
2
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