Tugas 1 soal 2

library(ggplot2)
data=read.table(file.choose(),header=TRUE)
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

#Y dengan X1

ggplot(data, aes(X1, Y)) +
  geom_point(color = "blue") +
  geom_smooth(method = "lm", color = "red", se = FALSE) +
  labs(title = "Scatterplot Y dengan X1", x = "X1", y = "Y")

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

#Y dengan X2

ggplot(data, aes(X2, Y)) +
  geom_point(color = "blue") +
  geom_smooth(method = "lm", color = "red", se = FALSE) +
  labs(title = "Scatterplot Y dengan X2", x = "X2", y = "Y")

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

#Y dengan X3

ggplot(data, aes(X3, Y)) +
  geom_point(color = "blue") +
  geom_smooth(method = "lm", color = "red", se = FALSE) +
  labs(title = "Scatterplot Y dengan X3", x = "X3", y = "Y")

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