Questions tagged [seq.unfold]
3 questions
20
votes
2 answers
Why is using a sequence so much slower than using a list in this example
Background:
I have a sequence of contiguous, time-stamped data.
The data-sequence has holes in it, some large, others just a single missing value.
Whenever the hole is just a single missing value, I want to patch the holes using a dummy-value…
Treefrog
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7
votes
3 answers
In F#, How do I use Seq.unfold in the context of a larger pipeline?
I have a CSV file with two columns, text and count. The goal is to transform the file from this:
some text once,1
some text twice,2
some text thrice,3
To this:
some text once,1
some text twice,1
some text twice,1
some text thrice,1
some text…
akucheck
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5
votes
4 answers
Seq.unfold explanation in F#
I am trying to create a sequence lazily by using F#.
The sequence is defined as follows:
The nth term of the sequence of
triangle numbers is given by, tn =
½n(n+1); so the first ten triangle
numbers are:
1, 3, 6, 10, 15, 21, 28, 36, 45, 55,
…
masfenix
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