Recent snippets
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Generic programming with Leibniz Equality
Uses Leibniz equality to generalize an example presented in https://skillsmatter.com/skillscasts/14430-f-sharpunctional-londoners-september
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Like the snippet!Posted: 4 days ago by Eirik Tsarpalis
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Kernel Density estimation and visualization with MathNet.Numerics and FsPlotly
Sample to estimate and visualize kernel densities of multiple distributions for visual comparison. Here the distributions of NY taxi fares are being compared by payment type (e.g. cash, credit card, etc.)
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Like the snippet!Posted: 6 days ago by Faisal Waris
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Natural Sort Order
Sort strings as file managers usually do, treating numeric substrings as numbers.
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Like the snippet!Posted: 6 days ago by Jim Foye
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Pi - Using Nilakantha's accelerated series
Calculate the value of Pi, using the Nilakantha series
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Like the snippet!Posted: 21 days ago by Apurva
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Pascal's Triangle
Creates a jagged 2d list of Pascal's Triangle.
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Like the snippet!Posted: 26 days ago by Kayden Tebau
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Configure F# Interactive to use Microsoft.ML.Net
Until FSI gets package references, we are to reference DLLs individually. This script sets up the FSI session to use ML.Net - assuming the required packages are loaded in the default location for the solution. Normally, referencing the latest AutoML and TimeSeries packages will net all the packages listed here.
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Like the snippet!Posted: 1 month ago by Faisal Waris
Popular snippets
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Split a list
Three ways to split a list in half (but not necessarily in the middle). A forth version added that's very short and should be fast, as we only use List.fold. New champ found.
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Like the snippet!Posted: 8 years ago by Dmitri Pavlenkov
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Doughnut chart using chart controls
The snippet shows how to use Microsoft Chart Controls (available in .NET 4.0 and for .NET 3.5) to draw a Doughnut chart. The sample shows proportion of seats taken by parties in UK elections.
85 people like this
Like the snippet!Posted: 8 years ago by Tomas Petricek
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Implementing active objects with a MailboxProcessor
Mailbox processors can easily be used to implement active objects. This example shows how to do that with a reusable wrapper type and minimal boilerplate code in the actual class definitions. Supports both asynchronous calls and synchronous calls. For the latter case, exceptions are automatically propagated back to the caller.
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Like the snippet!Posted: 8 years ago by Wolfgang Meyer
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Composing a list of functions
Composition of functions in F# is easily achieved by using the >> operator. You can also chain an arbitary amount of functions (represented as a list or sequence) together by folding the list/seq with >>. [More formally: the set of endomorphisms 'a -> 'a forms a monoid with the binary, associative operator ">>" (or "<<") and the neutral element "id".]
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Like the snippet!Posted: 8 years ago by Novox
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Monadic Memoization
Modular memoization within a pure functional setting that is implemented as a convenient computation builder.
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Like the snippet!Posted: 8 years ago by Nick Palladinos
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Filtering lists
Two functions showing how to filter functional lists using the specified predicate. First version uses naive recursion and the second one is tail-recursive using the accumulator parameter.
65 people like this
Like the snippet!Posted: 8 years ago by Tomas Petricek
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