---
title: "comb OLS Electricity"
output: rmarkdown::html_vignette
vignette: >
  %\VignetteIndexEntry{comb OLS Electricity}
  %\VignetteEngine{knitr::rmarkdown}
  %\VignetteEncoding{UTF-8}
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

# 1 - Comb OLS  

```{r}
library(ForecastComb)
```

```{r}
data(electricity)

print(head(electricity))

(forecasting_methods <- colnames(electricity)[1:5])

train_obs <- electricity[1:84, "Actual"]
train_pred <- electricity[1:84, forecasting_methods]
test_obs <- electricity[85:123, "Actual"]
test_pred <- electricity[85:123, forecasting_methods]
```

```{r}
data <- ForecastComb::foreccomb(train_obs, train_pred, test_obs, test_pred)
```

```{r}
start <- proc.time()[3]
obj <- ahead::comb_OLS(data)
print(proc.time()[3] - start)

print(class(obj))

print(obj$Accuracy_Test)

print(obj$Weights)

# check
print(mean(predict(obj, test_pred) - test_obs))
```

```{r fig.width=7.5, eval=FALSE}
plot(obj)
```

# 2 - Comb Ridge

```{r eval=TRUE}
start <- proc.time()[3]
obj <- ahead::comb_Ridge(data)
print(proc.time()[3] - start)
```

```{r eval=TRUE}

print(obj$Weights)

print(class(obj))

print(obj$Accuracy_Test)

# check 
print(mean(predict(obj, test_pred) - test_obs))
```

```{r fig.width=7.5, eval=FALSE}
plot(obj)
```