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The cause of “bad magic number” error when loading a workspace and how to avoid it?
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Also worth noting the following from a document by the R Core Team summarizing changes in versions of R after v3.5.0 (here):
R has new serialization format (version 3) which supports custom serialization of
ALTREP framework objects... Serialized data in fo...
What can MATLAB do that R cannot do? [closed]
...se in Matlab. I find that the quality of Matlab documentation varies a lot from function to function and between (commercial) toolboxes. I agree that Matlab IDE is somewhat more beginner friendly, but it is not better than e.g. ESS for R if you use it on a daily bases.
– Matti ...
decorators in the python standard lib (@deprecated specifically)
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Here's some snippet, modified from those cited by Leandro:
import warnings
import functools
def deprecated(func):
"""This is a decorator which can be used to mark functions
as deprecated. It will result in a warning being emitted
when the fu...
How to read an external properties file in Maven
...re ways to use resource filtering to read a properties file and set values from that, but I want a way in my pom.xml like:
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Can I make fast forwarding be off by default in git?
...ngs override global) run this:
git config --global --add merge.ff false
From the documentation:
merge.ff
By default, git does not create an extra merge commit when merging a commit that is a descendant of the current commit. Instead, the tip of the current branch is fast-forwarded. When set...
What do REFRESH and MERGE mean in terms of databases?
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REFRESH means "pull any state changes from the database into my representation". Cascading this is simple; it means that all associated entities are refreshed.
MERGE means something complex that approximates "save" but is more like "push this detached entity ba...
Convert string to symbol-able in ruby
...o be able to do and undo an operation. .to_sym can convert one direction (from string to symbol), and .to_s can convert (from symbol to string). and if you are dealing with an array consider .map(&:to_sym) or .map(&to_s) to convert all elements.
– jasonleonhard
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Best ways to teach a beginner to program? [closed]
...et, but you can get used to having a bit more freedom and less handholding from the language interpreter. Python enforces whitespace and indenting, which is nice most of the time but not always. C# and Java let you manage your own whitespace while remaining strongly-typed.
From there, the standard...
Tool to convert Python code to be PEP8 compliant
...lly pep8radius is applying autopep8 to lines in the output of git/hg diff (from the last shared commit).
This script currently works with git and hg, if your using something else and want this to work please post a comment/issue/PR!
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Why isn't vector a STL container?
...so each bool takes a byte and you can take the address of the value return from operator[].
Finally note that the MS standard library implementation is (arguably) suboptimal in that it uses a small chunk size for deques, which means that using deque as a substitute isn't always the right answer.
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