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How to create a density plot in matplotlib?

...with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the function covariance_factor of the gaussian_kde class. First, here is what you get without changing that function: However, if I use the following code: import...
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Define make variable at rule execution time

...r are evaluated. In order to create the directory only when out.tar is actually fired, you need to move the directory creation down into the steps: out.tar : $(eval TMP := $(shell mktemp -d)) @echo hi $(TMP)/hi.txt tar -C $(TMP) cf $@ . rm -rf $(TMP) The eval function evaluates a...
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When to use symbols instead of strings in Ruby?

...iers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks. Full answer The only reason not to use them for identifiers that are generated dynamically is because of memory concerns. This question is very common because many programming languages don't h...
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What are naming conventions for MongoDB?

... Keep'em short: Optimizing Storage of Small Objects, SERVER-863. Silly but true. I guess pretty much the same rules that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singul...
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What is the easiest way to get current GMT time in Unix timestamp format?

...hon on modern platforms, including Linux, BSD, Mac OS X, and Windows, will all return UTC for time.time(). This mirrors the behavior of the C standard library's time function on these OS's. – Edmond Burnett May 26 '13 at 7:21 ...
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Get underlined text with Markdown

... I guess this is because underlined text is hard to read, and that it's usually used for hyperlinks. share | improve this answer | follow | ...
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How can I alter a primary key constraint using SQL syntax?

...y constraint name, use query found here to look it up (or look up and drop all at once). http://stackoverflow.com/a/13948609/945875 – Justin Dec 19 '13 at 20:06 ...
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Android 4.3 Bluetooth Low Energy unstable

...ect and create a fresh instance of gatt on each connect. Don't forget to call android.bluetooth.BluetoothGatt#close() Start a new thread inside onLeScan(..) and then connect. Reason: BluetoothDevice#connectGatt(Context context, boolean autoConnect, BluetoothGattCallback callback) always fails, if ...
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is there a css hack for safari only NOT chrome?

...3 (early 2020 Update) * PLEASE PLEASE -- If you are having trouble, and really want to get help or help others by posting a comment about it, Post Your Browser and Device (MacBook/IPad/etc... with both browser and OS version numbers!) Claiming none of these work is not accurate (and actually not ev...
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TypeScript typed array usage

...93C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.69...