<?xml version="1.0" encoding="UTF-8"?>
<!--
 * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) ENPC - Jean-Philippe Chancelier
 *
 * Copyright (C) 2012 - 2016 - Scilab Enterprises
 *
 * This file is hereby licensed under the terms of the GNU GPL v2.0,
 * pursuant to article 5.3.4 of the CeCILL v.2.1.
 * This file was originally licensed under the terms of the CeCILL v2.1,
 * and continues to be available under such terms.
 * For more information, see the COPYING file which you should have received
 * along with this program.
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<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns5="http://www.w3.org/1999/xhtml" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:id="errbar" xml:lang="pt">
    <refnamediv>
        <refname>errbar</refname>
        <refpurpose>adiciona barras de erro veriticais a um esboço 2d</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>Seqüência de Chamamento</title>
        <synopsis>errbar(x,y,em,ep)</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>Parâmetros</title>
        <variablelist>
            <varlistentry>
                <term>x,y,em,ep</term>
                <listitem>
                    <para>quatro matrizes de mesmo tamanho.</para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>Descrição</title>
        <para>
            <literal>errbar</literal> adiciona barras de erro verticais a um
            esboço 2d. <literal>x</literal> e <literal>y</literal> têm o mesmo
            significado que em <literal>plot2d</literal>. <literal>em(i,j)</literal> e
            <literal>ep(i,j)</literal> são os intervalos de erro sobre os valores
            <literal>y(i,j)</literal>:
            <literal>[y(i,j)-em(i,j),y(i,j)+ep(i,j)]</literal>.
        </para>
        <para>
            Entre com o comando <literal>errbar()</literal> para visualizar uma
            demonstração.
        </para>
    </refsection>
    <refsection>
        <title>Exemplos</title>
        <programlisting role="example"><![CDATA[
t=[0:0.1:2*%pi]';
y=[sin(t) cos(t)]; x=[t t];
plot2d(x,y)
errbar(x,y,0.05*ones(x),0.03*ones(x))
 ]]></programlisting>
    </refsection>
    <refsection role="see also">
        <title>Ver Também</title>
        <simplelist type="inline">
            <member>
                <link linkend="plot2d">plot2d</link>
            </member>
        </simplelist>
    </refsection>
</refentry>
