1 files changed, 1 insertions, 58 deletions
diff --git a/help/en_US/arma_rnd.xml b/help/en_US/arma_rnd.xml
index 922bfb3..14b658b 100644
--- a/help/en_US/arma_rnd.xml
+++ b/help/en_US/arma_rnd.xml
@@ -17,64 +17,7 @@
 
   <refnamediv>
     <refname>arma_rnd</refname>
-    <refpurpose>Return a simulation of the ARMA model.</refpurpose>
+    <refpurpose></refpurpose>
   </refnamediv>
 
-
-<refsynopsisdiv>
-   <title>Calling Sequence</title>
-   <synopsis>
-   arma_rnd (a, b, v, t, n)
-   arma_rnd (a, b, v, t)
-   </synopsis>
-</refsynopsisdiv>
-
-<refsection>
-   <title>Parameters</title>
-   <variablelist>
-   <varlistentry><term>a:</term>
-      <listitem><para> vector</para></listitem></varlistentry>
-   <varlistentry><term>b:</term>
-      <listitem><para> vector</para></listitem></varlistentry>
-   <varlistentry><term>v:</term>
-      <listitem><para> Variance</para></listitem></varlistentry>
-   <varlistentry><term>t:</term>
-      <listitem><para> Length of output vector</para></listitem></varlistentry>
-   <varlistentry><term>n:</term>
-      <listitem><para> Number of dummy x(i) used for initialization</para></listitem></varlistentry>
-   </variablelist>
-</refsection>
-
-<refsection>
-   <title>Description</title>
-   <para>
-The ARMA model is defined by
-   </para>
-   <para>
-   <latex>
-   \begin{eqnarray}
-x(n) = a(1) * x(n-1) + … + a(k) * x(n-k) + e(n) + b(1) * e(n-1) + … + b(l) * e(n-l)
-   \end{eqnarray}
-   </latex>
-</para>
-<para>
-in which k is the length of vector a, l is the length of vector b and e is Gaussian white noise with variance v. The function returns a vector of length t.
-   </para>
-   <para>
-The optional parameter n gives the number of dummy x(i) used for initialization, i.e., a sequence of length t+n is generated and x(n+1:t+n) is returned. If n is omitted, n = 100 is used.
-</para>
-</refsection>
-
-<refsection>
-   <title>Examples</title>
-   <programlisting role="example"><![CDATA[
-a = [1 2 3 4 5];
-b = [7; 8; 9; 10; 11];
-v = 10;
-t = 5;
-n = 100;
-arma_rnd (a, b, v, t, n)
-
-   ]]></programlisting>
-</refsection>
 </refentry>