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How do you read a file into a list in Python? [duplicate]
..., convert the numbers into a list, then find the mean, standard deviation, etc. without using the easy built-in Python tools.
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LEN function not including trailing spaces in SQL Server
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Also for varchar etc. this can be collation dependant and not even a straight forward division by 2 is reliable. See example here
– Martin Smith
Jul 13 '13 at 11:33
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How should I handle “No internet connection” with Retrofit on Android
...pter
RestAdapter.Builder().setEndpoint(serverHost)
.setClient(new ConnectivityAwareUrlClient(new OkHttpClient(), ...))
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Find running median from a stream of integers
...riance of the input is statistically distributed (e.g. normal, log-normal, etc.) then reservoir sampling is a reasonable way of estimating percentiles/medians from an arbitrarily long stream of numbers.
int n = 0; // Running count of elements observed so far
#define SIZE 10000
int reservoir[SIZE...
Use 'import module' or 'from module import'?
...module
and then access everything as
module.function
module.modulevar
etc. The reason is that at the same time you have short invocation, and you clearly define the module namespace of each routine, something that is very useful if you have to search for usage of a given module in your source.
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std::function and std::bind: what are they, and when should they be used?
...tion is more generic to work with lambdas, context capture, member methods etc.
– Shital Shah
Sep 23 '19 at 8:09
bind(...
How do you manage databases in development, test, and production?
...elopment, and a maintenance branch for bug fixes, short term enhancements, etc. Inevitably, the need arose to make changes to the schema in the branch. At this point, we already had dbChanges_n+1.sql in the Trunk, so we ended up going with a scheme like the following:
dbChanges_n.1.sql
dbChanges_n...
Number of processors/cores in command line
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The most simplest tool comes with glibc and is called getconf:
$ getconf _NPROCESSORS_ONLN
4
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How do I reference a javascript object property with a hyphen in it?
Using this script to make a style object of all the inherited etc styles.
11 Answers
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difference between primary key and unique key
... there are so many physical entities (such as people, resources, machines, etc.) and virtual entities (their Tasks, transactions, activities).
Typically, business needs to record and process information of those business entities.
These business entities are identified within a whole business doma...