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完整的生存分析Fortran语言源代码。有5个大的功能模块。

                             INTRODUCTION

SURVAN is a package  for   non-parametric  survival analysis.   SURVAN
performs  the   following  calculations: Kaplan-Meier   estimation  of
survival functions with confidence limits on  estimates and quantiles.
Log rank and Gehan-Breslow tests of the equality of survival functions
of several groups, optional over several strata.  Proportional hazards
model estimation  of coefficients  and underlying hazard  and survival
function.    Logistic  regression  estimation.   SURVAN  also computes
frequency distributions and condescriptive  statistics,  which  may be
useful in setting up the above.

                          HOW IT WAS WRITTEN

SURVAN  was largely written in  FLECS+, a Fortran preprocessor similar
in spirit to ratfor.  The resulting ugly Fortran was polished with the
Toolpack tools, pol and decs.   We wish  that  we  could claim that it
passed the pfort portability test,  but pfort  runs   out of steam  on
anything the size of SURVAN.

                       LEGALITIES (BRIEF)

    We want to make  this  program as widely   available  as possible.
Hence, executable code derived  from  the source provided, the  source
itself, and the accompanying  documentation  may be freely  copied and
distributed  provided  that  this   copyright section accompanies such
copies.  We encourage the distribution of this code on bulletin boards
and as shareware.

    Modifications and improvements to the code can similarly be freely
copied and distributed.  Barry Brown  would appreciate  a copy of  any
such improvements for incorporation into later versions of SURVAN.

    Source code  may be extracted    and used for  any  non-commercial
purpose.  Non-commercial means that  at most a modest distribution fee
is charged, as shareware.  We would  appreciate acknowledgment of usch
use of our code.

    Commercial use of the source code requires written permission from
the Department of Biomathematics at the above  address.  Our policy is
generally to grant  such  permission  provided appropriate   credit is
given to us in the documentation.

                             Packing List

The following  files constitute the  source of this  application.  For
each file, the  output of the Unix  command sum and wc  is given.  The
first  number under sum  is a 16  bit check  sum  that  can be used to
verify the  accuracy  of the reconstructed  file on a Unix system. The
second number is  the number of  blocks occupied by  the file; this is
not   very  useful  because it varies  from system  to system.  The wc
numbers are (1) number of lines in the file, (2)  number of words, and
(3) number of characters.
 
File: machspec.MAC
     sum  56920    21
     wc   2988   11910   83498 machspec.MAC

File: machspec.MSDOS
     sum  27838    21
     wc   2984   11878   83236 machspec.MSDOS

File: machspec.UNIX
     sum  41840    21
     wc   2985   11902   83405 machspec.UNIX

File: machspec.VAX
     sum  57906    21
     wc   3075   12194   85795  machspec.VAX

File: SURVAN1.f
     sum  09540    35
     wc   4589   18474  139822 SURVAN1.f

File: SURVAN2.f
     sum  65148    32
     wc   4772   16846  130897 SURVAN2.f

File: SURVAN3.f
     sum  42619    36
     wc   4985   19310  144228 SURVAN3.f

File: SURVAN4.f
     sum  35996    34
     wc   4797   16699  135184 SURVAN4.f

File: SURVAN5.f
     sum  00823    32
     wc   4519   17579  129281 SURVAN5.f

File: SURVAN6.f
     sum  20098    26
     wc   3789   13650  103235 SURVAN6.f

File: sexample.dat
     sum  44035     1
     wc   40     120     348 sexample.dat

File: survan.doc
     sum  16976    12
     wc   1566    6153   47251 survan.doc

File: date.awk
     sum  35879     3
     wc   343    1503   10078 date.awk

                             INSTALLATION

SURVAN documentation is on  file survan.doc. sexample.dat contains the
data from the example in the documentation.

The  machine independent portion of  the  Fortran source for SURVAN is
contained    in   the    files   SURVAN1.f   thru  SURVAN6.f.    Files
machspec.<machine>  contain  the  Fortran   that is machine  specific:
macspec.MAC is  code for  Language Systems Fortran   on the Macintosh;
machspec.MSDOS is intended  for Microsoft Fortran  on a MSDOS machine;
macspec.UNIX  will compile correctly   under a number of Unix  Fortran
compilers; macspec.VAX is intended for VMS Fortran.

The machine  dependence arises from  an elaborate model  of  input and
output used by the authors.

                 OBTAINING SOURCE AND OTHER VERSIONS

The Fortran source of our routines be obtained  by internet  or Bitnet
mail from statlib.  For information  on statlib, send  a message whose
body is 'send index' to [e-mail].

The Fortran source code,  and MS-DOS PC and  MacIntosh executables are
also available via     anonymous  ftp  from   mdaali.cancer.utexas.edu
(129.106.1.6).

                        CONTACTING THE AUTHORS

To contact the authors of SURVAN, please write to:

          Barry W. Brown
          Professor of Biomathematics
          Department of Biomathematics, Box 237
          University of Texas M. D. Anderson Cancer Center
          1515 Holcombe Boulevard
          Houston, TX 77030

or send electronic mail to:

Internet: [e-mail]