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Add document to stats functions

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@342735 c90b9560-bf6c-de11-be94-00142212c4b1
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Yuji Uchiyama 2017-07-31 14:09:53 +00:00
parent 9291f00924
commit 7981555c43
2 changed files with 58 additions and 8 deletions
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51
reference/stats/functions/stats-cdf-poisson.xml
View file

@ -13,9 +13,49 @@
<methodparam><type>float</type><parameter>par2</parameter></methodparam>
<methodparam><type>int</type><parameter>which</parameter></methodparam>
</methodsynopsis>
&warn.undocumented.func;
<para>
Returns the cumulative distribution function, its inverse, or one of its parameters, of the Poisson distribution.
The kind of the return value and parameters (<parameter>par1</parameter> and <parameter>par2</parameter>) are
determined by <parameter>which</parameter>.
</para>
<para>
The following table lists the return value and parameters by <parameter>which</parameter>.
CDF, x, and lambda denotes cumurative distribution function, the value of the random variable,
and the parameter of the Poisson distribution, respectively.
<table>
<title>Return value and parameters</title>
<tgroup cols="4">
<thead>
<row>
<entry><parameter>which</parameter></entry>
<entry>Return value</entry>
<entry><parameter>par1</parameter></entry>
<entry><parameter>par2</parameter></entry>
</row>
</thead>
<tbody>
<row>
<entry>1</entry>
<entry>CDF</entry>
<entry>x</entry>
<entry>lambda</entry>
</row>
<row>
<entry>2</entry>
<entry>x</entry>
<entry>CDF</entry>
<entry>lambda</entry>
</row>
<row>
<entry>3</entry>
<entry>lambda</entry>
<entry>x</entry>
<entry>CDF</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
@ -25,6 +65,7 @@
<term><parameter>par1</parameter></term>
<listitem>
<para>
The first parameter
</para>
</listitem>
</varlistentry>
@ -32,6 +73,7 @@
<term><parameter>par2</parameter></term>
<listitem>
<para>
The second parameter
</para>
</listitem>
</varlistentry>
@ -39,6 +81,7 @@
<term><parameter>which</parameter></term>
<listitem>
<para>
The flag to determine what to be calculated
</para>
</listitem>
</varlistentry>
@ -47,8 +90,8 @@
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns CDF, x, or lambda, determined by <parameter>which</parameter>.
</para>
</refsect1>

15
reference/stats/functions/stats-dens-normal.xml
View file

@ -3,7 +3,7 @@
<refentry xml:id="function.stats-dens-normal" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>stats_dens_normal</refname>
<refpurpose>Not documented</refpurpose>
<refpurpose>Probability density function of the normal distribution</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
@ -13,9 +13,12 @@
<methodparam><type>float</type><parameter>ave</parameter></methodparam>
<methodparam><type>float</type><parameter>stdev</parameter></methodparam>
</methodsynopsis>
&warn.undocumented.func;
<para>
Returns the probability density at <parameter>x</parameter>, where the
random variable follows the normal distribution of which the mean is
<parameter>ave</parameter> and the standard deviation is
<parameter>stdev</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
@ -25,6 +28,7 @@
<term><parameter>x</parameter></term>
<listitem>
<para>
The value at which the probability density is calculated
</para>
</listitem>
</varlistentry>
@ -32,6 +36,7 @@
<term><parameter>ave</parameter></term>
<listitem>
<para>
The mean of the distribution
</para>
</listitem>
</varlistentry>
@ -39,6 +44,7 @@
<term><parameter>stdev</parameter></term>
<listitem>
<para>
The standard deviation of the distribution
</para>
</listitem>
</varlistentry>
@ -49,6 +55,7 @@
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The probability density at <parameter>x</parameter> or &false; for failure.
</para>
</refsect1>