This module contains additional functions for working with arrays. `Deedle.Internals` is opened, it extends the standard `Array` module.

This module contains additional functions for working with lists.

Utility functions for identifying missing values. The `isNA` function can be used to test whether a value represents a missing value - this includes the `null` value, `Nullable` value with `HasValue = false` and `Single.NaN` as well as `Double.NaN`. The functions in this module are not intended to be called directly.

Provides helper functions for working with `ReadOnlyCollection` similar to those in the `Array` module. Most importantly, F# 3.0 does not know that array implements `IList`.

This module contains additional functions for working with sequences. `Deedle.Internals` is opened, it extends the standard `Seq` module.