<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>stats_rand_gen_noncentral_f</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="PHP 手册"
HREF="index.html"><LINK
REL="UP"
TITLE="Statistics Functions"
HREF="ref.stats.html"><LINK
REL="PREVIOUS"
TITLE="stats_rand_gen_noncenral_chisquare"
HREF="function.stats-rand-gen-noncenral-chisquare.html"><LINK
REL="NEXT"
TITLE="stats_rand_gen_noncentral_t"
HREF="function.stats-rand-gen-noncentral-t.html"><META
HTTP-EQUIV="Content-type"
CONTENT="text/html; charset=UTF-8"></HEAD
><BODY
CLASS="refentry"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>PHP 手册</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="function.stats-rand-gen-noncenral-chisquare.html"
ACCESSKEY="P"
>上一页</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="function.stats-rand-gen-noncentral-t.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="function.stats-rand-gen-noncentral-f"
></A
>stats_rand_gen_noncentral_f</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN221607"
></A
><P
> (no version information, might be only in CVS)</P
>stats_rand_gen_noncentral_f -- Generates a random deviate from the noncentral F (variance ratio) distribution with "dfn" degrees of freedom in the numerator, and "dfd" degrees of freedom in the denominator, and noncentrality parameter "xnonc". Method : directly generates ratio of noncentral numerator chisquare variate to central denominator chisquare variate.</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN221610"
></A
><H2
>说明</H2
>float <B
CLASS="methodname"
>stats_rand_gen_noncentral_f</B
> ( float dfn, float dfd, float xnonc )<BR
></BR
><DIV
CLASS="warning"
><P
></P
><TABLE
CLASS="warning"
BORDER="1"
WIDTH="100%"
><TR
><TD
ALIGN="CENTER"
><B
>警告</B
></TD
></TR
><TR
><TD
ALIGN="LEFT"
><P
>本函数暂无文档，仅有参数列表。</P
></TD
></TR
></TABLE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN221626"
></A
><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>dfn</CODE
></DT
><DD
><P
> Its description
</P
></DD
><DT
><CODE
CLASS="parameter"
>dfd</CODE
></DT
><DD
><P
> Its description
</P
></DD
><DT
><CODE
CLASS="parameter"
>xnonc</CODE
></DT
><DD
><P
> Its description
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN221645"
></A
><H2
>返回值</H2
><P
> What the function returns, first on success, then on failure. See
also the &return.success; entity
</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="function.stats-rand-gen-noncenral-chisquare.html"
ACCESSKEY="P"
>上一页</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>起始页</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="function.stats-rand-gen-noncentral-t.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>stats_rand_gen_noncenral_chisquare</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ref.stats.html"
ACCESSKEY="U"
>上一级</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>stats_rand_gen_noncentral_t</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
