---
title: "Outdoor Time Series I-V Curve Data from SDLE SunFarm"
author: "Menghong Wang, Jiqi Liu, Jennifer L. Braid, Roger H. French"
date: "`r Sys.Date()`"
output: rmarkdown::html_vignette
vignette: >
  %\VignetteIndexEntry{Outdoor Time Series I-V Curve Data from SDLE SunFarm}
  %\VignetteEngine{knitr::rmarkdown}
  %\VignetteEncoding{UTF-8}
---
Data Description
-----------------------------------
This dataset comes from SDLE SunFarm, which provides extensive outdoor exposure capabilities, including mini-modules and full size modules mounted on both dual axis trackers fixed racks. 
Modules are individually controlled and operated by Daystar multi-tracer system at their peak power during daylight hours. 
Data acquired include time-series I-V curve data taken every 10 minutes, and time series power, voltage, current and weather data collected every minute.


Load data and run code to extract IV features 
------------------------------------------
```{r, message=FALSE, eval=TRUE}
library(ddiv)
data("IV_daystar")
IVExtractResult(IV_daystar,k=4)
```

Example output
--------------------------
The result is for finding steps for example data "IV_daystar", no changepoint identifying step is found.

![](IV_daystar.png)