Tugas 2 Regnon

library(ggplot2)
data=read.table("tugas 2.txt",header = T) 
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

#ScatterPlot Y terhadap X1
ggplot(data, aes(x = X1, y = Y)) +
  geom_point(size = 3, color = "orange") +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "red",
    linetype = "twodash",
    linewidth = 1
  ) +
  labs(
    title = "Scatter Plot Y terhadap X1",
    x = "X1",
    y = "Y"
  ) +
  theme_minimal()

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

#ScatterPlot Y terhadap X2
ggplot(data, aes(x = X2, y = Y)) +
  geom_point(size = 3, color = "blue") +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "red",
    linetype = "twodash",
    linewidth = 1
  ) +
  labs(
    title = "Scatter Plot Y terhadap X2",
    x = "X2",
    y = "Y"
  ) +
  theme_minimal()

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

#ScatterPlot Y terhadap X3
ggplot(data, aes(x = X3, y = Y)) +
  geom_point(size = 3, color = "darkred") +
  geom_smooth(
    method = "lm",
    se = FALSE,
    color = "red",
    linetype = "twodash",
    linewidth = 1
  ) +
  labs(
    title = "Scatter Plot Y terhadap X3",
    x = "X3",
    y = "Y"
  ) +
  theme_minimal()

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