HowTo:Plot data using matlab

This describe how to create a plot using Matlab&reg;'s hist command.

System requirements

 * : You must be using a version of GridLAB-D that support the link directive.
 * Matlab link : You must have a version of Matlab that supports the Matlab external interface engine and the hist command.

Suppose you have a GLM file named my_plot.glm that defines a trivial object test as follows:

clock { starttime '2001-01-01 0:00:00'; stoptime '2001-01-02 0:00:00'; } class test { random x; } object test { name my_test; x "type:normal(0,1); refresh:1min; integrate"; }

Step 1 - Link GLM to Matlab using a link control file
Add the link directive to your GLM file:

link matlab_plot.link;

Step 2 - Create the link control file
Create the link control file using the following commands

target matlab workdir hist window show output 100000 global object export my_test.x x on_init q=zeros(1000,1); n=1; ans=GLD_OK; on_sync if(n<1000) q(n)=x; ans=TS_NEVER; on_term hist(q); saveas(gcf,'q.png'); ans=GLD_OK;

Step 3 - Run GridLAB-D
C:\GridLAB-D> gridlabd my_plot.glm ... perhaps some output is displayed C:\GridALB-D>

Step 4 - View the PNG file
Open a file explorer, go the hist folder, and double-click on the PNG file.