sciruby | Tools for scientific computation in Ruby
kandi X-RAY | sciruby Summary
kandi X-RAY | sciruby Summary
This gem acts as a meta gem which collects and provides multiple scientific gems, including numeric and visualization libraries.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of sciruby
sciruby Key Features
sciruby Examples and Code Snippets
Community Discussions
Trending Discussions on sciruby
QUESTION
I have an array of items like so: [DateTime, value]
. I want to group the items which satisfy the following conditions:
- A sequence of 3 or more items
- Items contain values which are > 0
- times are sequential (increasing by 1 second)
I want to get the indices of the start and end of the sequences that meet those conditions.
E.g.
...ANSWER
Answered 2018-Nov-06 at 10:41t = Time.now
a = [
[t + 0, 1],
[t + 1, 1],
[t + 2, 1],
[t + 3, 0],
[t + 4, 1],
[t + 5, 1],
[t + 16, 1],
[t + 17, 1],
]
a
.each_with_index
.chunk_while{
|(x, i), (y, j)|
x[1].positive? and
y[1].positive? and
x[0].to_i.next == y[0].to_i
}
.select{|chunk| chunk.length >= 3}
.map{|chunk| [chunk.first[1], chunk.last[1]]}
# => [[0, 2]]
QUESTION
Been experimenting with using Ruby inside a jupyter notebook. With Python I can do this
...ANSWER
Answered 2018-Mar-21 at 18:16This is how far I can get it to work in jupyter notebook on MacOSX:
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