{smcl}
{* 14July2016}{...}
{hline}
help for {hi:netcdf_init}
{hline}

{title:Initializes the environment for ncread/ncdisp}

{cmd:netcdf_init } initializes the environment for reading NetCDF files using the netcdfAll-5.9.1.java library. 
{marker syntax}{...}
{title:Syntax}

{p 4 10 2}
{cmd:netcdf_init }[{it:pathofjar}] 
[,{it:options}]

{synoptset 24 tabbed}{...}
{synopthdr}
{synoptline}

{synopt :{opt download}}specify downloading netcdfALL-5.9.1.jar{p_end}
{synopt :{opt dir(string)}}specify the target directory for downloading netcdfALL-5.9.1.jar{p_end}
{synopt :{opt plus(string)}}copy netcdfALL-5.9.1.jar to the specified folder in sysdir_plus{p_end}
{synopt :{opt compiled}}specify downloading the precompiled jar{p_end}

{synoptline}
 

{marker examples}{...}
{title:Examples}

{phang}
The most easy way to use the netcdf related commands is downloading the precompiled jar which 
bundles the necessary dependencies. This is the recommended approach for most users, especially those using Stata 19 with Java 21+. Simply run the following command.

{p 12 16 2}
{cmd:. netcdf_init, compiled}{break}

{phang}
The following examples are shown for running Java source code in Jshell within Stata. And it need to download full library installation.

{phang}
1. Manually downloading netcdfALL-5.9.1.jar and add the current directory into Stata adopath:

{p 12 16 2}
{cmd:.copy https://downloads.unidata.ucar.edu/netcdf-java/5.9.1/netcdfAll-5.9.1.jar }{break}

{p 12 16 2}
{cmd:.netcdf_init}{break}

{phang}
2. Manually downloading netcdfALL-5.9.1.jar into D:/jars and add D:/jars into Stata adopath:

{p 12 16 2}
{cmd:.mkdir D:/jars}{break}

{p 12 16 2}
{cmd:.copy https://downloads.unidata.ucar.edu/netcdf-java/5.9.1/netcdfAll-5.9.1.jar D:/jars/netcdfAll-5.9.1.jar}{break}

{p 12 16 2}
{cmd:.netcdf_init D:/jars}{break}

{phang}
3. Automatically downloading netcdfALL-5.9.1.jar into sysdir_plus/jar:

{p 12 16 2}
{cmd:.netcdf_init, download plus(jar)}{break}


{hline}


{title:Authors}
{pstd}Kerry Du{p_end}
{pstd}School of Managemnet, Xiamen University, China{p_end}
{pstd}Email: kerrydu@xmu.edu.cn{p_end}

{pstd}Chunxia Chen{p_end}
{pstd}School of Managemnet, Xiamen University, China{p_end}
{pstd}Email: 35720241151353@stu.xmu.edu.cn

{pstd}Shuo Hu{p_end}
{pstd}School of Economics, Southwestern University of Finance and Economics, China{p_end}
{pstd}advancehs@163.com{p_end}

{pstd}Yang Song{p_end}
{pstd}School of Economics, Hefei University of Technology, China{p_end}
{pstd}Email: ss0706082021@163.com

{pstd}Ruipeng Tan{p_end}
{pstd}School of Economics, Hefei University of Technology, China{p_end}
{pstd}Email: tanruipeng@hfut.edu.cn

{title:Also see}
{p 7 14 2}Help:  {help ncread}, {helpb ncdisp} (if installed){p_end}