Regnon Dataset 1

# 1. MEMASUKKAN DATA

library(ggplot2)

data <- data.frame(
  Y = c(57.5, 52.8, 61.3, 67.0, 53.5, 62.7, 56.2, 68.5, 69.2),
  X1 = c(78, 69, 77, 88, 67, 80, 74, 94, 102),
  X2 = c(2.75, 2.15, 4.41, 5.52, 3.21, 4.32, 2.31, 4.30, 3.71),
  X3 = c(29.5, 26.3, 32.2, 36.5, 27.2, 27.7, 28.3, 30.3, 28.7)
)

# Menampilkan seluruh data
data

##      Y  X1   X2   X3
## 1 57.5  78 2.75 29.5
## 2 52.8  69 2.15 26.3
## 3 61.3  77 4.41 32.2
## 4 67.0  88 5.52 36.5
## 5 53.5  67 3.21 27.2
## 6 62.7  80 4.32 27.7
## 7 56.2  74 2.31 28.3
## 8 68.5  94 4.30 30.3
## 9 69.2 102 3.71 28.7

# 2. SCATTER PLOT Y TERHADAP X1

ggplot(data, aes(x = X1, y = Y)) +
  geom_point(color = "red", size = 3) +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "magenta",
    linewidth = 1.2
  ) +
  labs(
    title = "Scatter Plot Y terhadap X1",
    x = "X1",
    y = "Y"
  ) +
  theme_minimal()

## `geom_smooth()` using formula = 'y ~ x'

# 3. SCATTER PLOT Y TERHADAP X2

ggplot(data, aes(x = X2, y = Y)) +
  geom_point(color = "red", size = 3) +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "magenta",
    linewidth = 1.2
  ) +
  labs(
    title = "Scatter Plot Y terhadap X2",
    x = "X2",
    y = "Y"
  ) +
  theme_minimal()

## `geom_smooth()` using formula = 'y ~ x'

# 4. SCATTER PLOT Y TERHADAP X3

ggplot(data, aes(x = X3, y = Y)) +
  geom_point(color = "red", size = 3) +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "magenta",
    linewidth = 1.2
  ) +
  labs(
    title = "Scatter Plot Y terhadap X3",
    x = "X3",
    y = "Y"
  ) +
  theme_minimal()

## `geom_smooth()` using formula = 'y ~ x'