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Frequency table for a single variable
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@dsaxton you can use .value_counts(normalize=True) to convert the results to proportions
– Max Power
Nov 30 '16 at 21:01
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Why can't non-default arguments follow default arguments?
... required parameters must be placed before any default arguments. Simply because they are mandatory, whereas default arguments are not. Syntactically, it would be impossible for the interpreter to decide which values match which arguments if mixed modes were allowed. A SyntaxError is raised if the a...
moment.js - UTC gives wrong date
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By default, MomentJS parses in local time. If only a date string (with no time) is provided, the time defaults to midnight.
In your code, you create a local date and then convert it to the UTC timezone (in fact, it makes the moment instance switch to UTC mo...
Are SVG parameters such as 'xmlns' and 'version' needed?
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All user agents (browsers) ignore the version attribute, so you can always drop that.
If you embed your SVG inline in a HTML page and serve that page as text/html then xmlns attributes are not required. Embedding SVG inline in HTML documents is a fairly recent innovation that came along ...
What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep
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Application.ThreadException is specific to Windows Forms. Winforms runs event handlers in response to messages sent to it by Windows. The Click event for example, I'm sure you know them. If such an event handler throws an excep...
Error: Jump to case label
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The problem is that variables declared in one case are still visible in the subsequent cases unless an explicit { } block is used, but they will not be initialized because the initialization code belongs to another case.
In the following code, if foo equals 1, everythi...
List files by last edited date
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You can use:
ls -Rt
where -R means recursive (include subdirectories) and -t means "sort by last modification date".
To see a list of files sorted by date modified, use:
ls -l -Rt
An alias can also be created to achieve ...
The difference between try/catch/throw and try/catch(e)/throw e
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The constructions
try { ... }
catch () { ... } /* You can even omit the () here */
try { ... }
catch (Exception e) { ... }
are similar in that both will catch every exception thrown inside the try block (and, unless you are simply using this to log the...
Define make variable at rule execution time
...uates a string as if it had been typed into the makefile manually. In this case, it sets the TMP variable to the result of the shell function call.
edit (in response to comments):
To create a unique variable, you could do the following:
out.tar :
$(eval $@_TMP := $(shell mktemp -d))
@ech...
What is the difference between save and export in Docker?
...ade some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them.
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