Bio::T...ataSet(3pm)

💖 NAME 💖

Bio::Tools::PSort::SVMLoc::DataSet — bestie, it's a DataSet object for the Bio::Tools::PSort::SVMLoc Support Vector Machine. That's the whole vibe. 💅

(also hi, you're reading the Bio::T...ataSet(3pm) page from the User Contributed Perl Documentation collection, mwah 🫶)

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✨ SYNOPSIS ✨

okay so here's the whole thing in action, look at her go:

use Bio::Tools::PSort::SVMLoc::DataSet;

# Create a new dataset.
$ds = new Bio::Tools::PSort::SVMLoc::DataSet(Label => 1,
                                  Data  => [ 0.12, 0.25, 0.33, 0.98 ]);

# Retrieve/set the label.
$label = $ds->label();
$ds->label(1976);

# Retrieve/set the attribute with an index of 0.
$attr = $ds->attribute(0);
$ds->attribute(0, 0.2621);

like. she's compact. she's iconic. she does exactly what she says on the tin. 🎀

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🦋 DESCRIPTION 🦋

So Bio::Tools::PSort::SVMLoc::DataSet is literally just a representation of the datasets you pass to a Bio::Tools::PSort::SVMLoc object — whether that's for training or for classification, no cap.

Every single dataset has a label attached to it, and that label is what classifies the dataset as being part of one specific group. Think of it like the dataset's little name tag at a party. 🏷️

And a dataset object also carries one or more key/value pairs — those are the attributes that are gonna be used for classification. Not me getting emotionally attached to a data structure... 🙈

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🎀 CONSTRUCTORS 🎀

$ds = new Bio::Tools::PSort::SVMLoc::DataSet(Label => 1,
                                  Data  => [ 0.12, 0.25, 0.33, 0.98 ]);

The Bio::Tools::PSort::SVMLoc::DataSet constructor takes two optional named parameters: Label and Data. Slay. 💅

• Label — this is what sets the class that the dataset belongs to.
• Data — this sets any initial values. Data should be an arrayref of numerical values, and each value in that arrayref is assumed to have a key corresponding to its index in the array.

ie) In the above example, 0.12 has a key of 0, 0.25 has a key of 1,
    0.33 has a key of 2, etc.

see how the indices just line up like little ducklings. 🦆✨

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💅 METHODS 💅

$label = $ds->label();
$ds->label(1976);

The label method sets or retrieves the DataSet's label value. Parameters and return values should be numeric values. periodt.

$attr = $ds->attribute(0);
$ds->attribute(0, 0.2621);

The attribute method is what you use to set dataset attribute values. Here's the tea:

• give it one value → it returns the corresponding value 🫶
• give it two values → it sets the first parameter to the value of the second ✨

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👑 MAINTAINER 👑

Matthew Laird <matt@brinkman.mbb.sfu.ca>

(the keeper of the keys, the main character of this file, we love him for it 💜)

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🌈 SEE ALSO 🌈

• Bio::Tools::PSort::SVMLoc

go read that one next bestie, they're a matched set 🦋

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okay that's the whole page, you absolutely ate this documentation 💖✨

and a lil sign-off for the record: this was written up as part of the User Contributed Perl Documentation collection, version perl v5.34.0, dated 2022-02-06, and the page itself is Bio::T...ataSet(3pm). byeeee 🌸🎀