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Representing graphs (data structure) in Python
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There are two excellent graph libraries
NetworkX and igraph. You can find both library source codes on GitHub. You can always see how the functions are written. But I prefer NetworkX because its easy to understand.
See their codes to know ...
Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
...difficulty. But that's just for optional improvement -- this is already an excellent solution as it stands.
– Ben Lee
Apr 30 '13 at 21:45
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What are the differences between Perl, Python, AWK and sed? [closed]
... readability and consistency over Perl's more flexible but terse syntax. Excellent post Jonathan
– Martin Beckett
May 25 '10 at 14:59
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How can I view the source code for a function?
...ed: edit() opens a text editor (of user's choice), whereas View() opens an Excel-type spreadsheet viewer for data, the latter is good for browsing (multi-columnar) data, but usually terrible for code of anything other than toy length. For example as I hint at, generally the first thing I want to do ...
val-mutable versus var-immutable in Scala
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var immutable vs. val mutable
In addition to many excellent answers to this question. Here is a simple example, that illustrates potential dangers of val mutable:
Mutable objects can be modified inside methods, that take them as parameters, while reassignment is not allowed...
Pass a data.frame column name to a function
...icipated points of failure. This section of Hadley's Advanced R book is an excellent reference for some of these issues.
If you really want to save the user from typing all those quotes, one option might be to convert bare, unquoted column names to strings using deparse(substitute()):
new_column2 ...
What is the difference between partitioning and bucketing a table in Hive ?
...ng this question, but it keep coming up in my feed.
Navneet has provided excellent answer. Adding to it visually.
Partitioning helps in elimination of data, if used in WHERE clause, where as bucketing helps in organizing data in each partition into multiple files, so as same set of data is always...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
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@user3152527 You asked an excellent question (and not a dumb one at worst). But you've fixed it to use .equals, right?
– user2910265
Jan 2 '14 at 6:42
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Foreign Key to multiple tables
...to enforce referential integrity.
Two advantages I see here over Nathan's excellent model (above):
More immediate clarity and simplicity.
Simpler queries to write.
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What's the difference between using “let” and “var”?
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And..+1. That Kyle Simpson article you linked is an excellent read, thank you for that! It is also clear about the "temporal dead zone" aka "TDZ". One interesting thing I'd like to add: I've read on MDN that let and const were recommended to only use when you actually need the...