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<?xml version="1.0" encoding="utf-8"?>
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<!--
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2023-01-17 23:09:25 -05:00
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Copyright (C) 2014-2023 Ryan Specialty, LLC.
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This file is part of tame-core.
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tame-core is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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-->
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<package xmlns="http://www.lovullo.com/rater"
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xmlns:c="http://www.lovullo.com/calc"
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xmlns:t="http://www.lovullo.com/rater/apply-template"
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core="true"
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desc="Vector element counting">
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<import package="../base" />
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<!-- TODO: deprecate in favor of the new c:length-of -->
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<function name="length" desc="Counts the number of items in a vector (regardless of value)">
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<param name="count_set" type="integer" set="vector" desc="Vector to count" />
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<c:sum of="count_set" index="k">
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<c:const value="1" desc="Add 1 for each value in the set" />
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</c:sum>
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</function>
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<!-- similar to a logical "exists" -->
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<function name="hasany" desc="Returns 1 or 0 based on whether any values in a boolean vector are set" sym="\exists">
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<param name="any_set" type="boolean" set="vector" desc="Boolean set to check" />
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<c:ceil>
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<c:quotient label="Create a fraction > 0 if any value in the given set is 1">
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<c:sum of="any_set" label="Will be > 0 if any 1s exist in the set" />
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<c:sum>
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<c:apply name="length">
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<c:arg name="count_set">
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<c:value-of name="any_set" />
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</c:arg>
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</c:apply>
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<!-- ensure the equation is not undefined if length = 0 -->
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<c:const value="1" desc="Add 1 to ensure equation is always defined" />
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</c:sum>
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</c:quotient>
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</c:ceil>
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</function>
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</package>
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