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312 changes: 29 additions & 283 deletions README.md

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16 changes: 8 additions & 8 deletions _config.yml
Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,12 @@ minimal_mistakes_skin : "default" # "air", "aqua", "contrast", "dark", "dirt"
# Site Settings
locale : "en-US"
rtl : # true, false (default) # turns direction of the page into right to left for RTL languages
title : "Site Title"
title : "Blog"
title_separator : "-"
subtitle : # site tagline that appears below site title in masthead
name : "Your Name"
description : "An amazing website."
url : # the base hostname & protocol for your site e.g. "https://mmistakes.github.io"
name : "21"
description : "๊ณผ์ œ๋ธ”๋กœ๊ทธ"
url : "https://frismaugment.github.io"
baseurl : # the subpath of your site, e.g. "/blog"
repository : # GitHub username/repo-name e.g. "mmistakes/minimal-mistakes"
teaser : # path of fallback teaser image, e.g. "/assets/images/500x300.png"
Expand Down Expand Up @@ -113,11 +113,11 @@ analytics:

# Site Author
author:
name : "Your Name"
name : "jsj99"
avatar : # path of avatar image, e.g. "/assets/images/bio-photo.jpg"
bio : "I am an **amazing** person."
location : "Somewhere"
email :
bio : "Just do it."
location : #
email : "990711jsj@naver.com"
links:
- label: "Email"
icon: "fas fa-fw fa-envelope-square"
Expand Down
111 changes: 111 additions & 0 deletions _posts/2023-03-23-1-1.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,111 @@
---
title: "์บก์Šคํ†ค๋””์ž์ธ 1.1๊ณผ์ œ"
layout: post
date: "2025-03-23"
---

# ์บก์Šคํ†ค๋””์ž์ธ 1.1๊ณผ์ œ

์ฃผ์‚ฌ์œ„ ๋‘ ๊ฐœ๋ฅผ ๊ตด๋ ค์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•ด์„œ ๋‘ ์ž๋ฆฌ ์ˆซ์ž๋ฅผ ํฌ๊ฒŒ ๋งŒ๋“œ๋Š” ์‚ฌ๋žŒ์ด ์ด๊ธฐ๋Š” ๊ฒŒ์ž„์ด๋‹ค. ์ฃผ์‚ฌ์œ„๋ฅผ ์ฒ˜์Œ ๊ตด๋ ค์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋ฅผ 10์˜ ์ž๋ฆฌ์™€ 1์˜ ์ž๋ฆฌ ์ค‘ ์–ด๋А ๊ณณ์— ์‚ฌ์šฉํ•  ์ง€ ๋จผ์ € ๊ฒฐ์ •ํ•ด์•ผ ํ•œ๋‹ค. ๊ทธ๋Ÿฐ ๋‹ค์Œ ๋‘ ๋ฒˆ์งธ๋กœ ์ฃผ์‚ฌ์œ„๋ฅผ ๊ตด๋ ค์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋Š” ์ž๋™์œผ๋กœ ๋‚จ์€ ์ž๋ฆฌ์˜ ์ˆซ์ž๋กœ ์‚ฌ์šฉ๋œ๋‹ค.

### 1. ์ตœ์„ ์˜ ์ „๋žต ์งœ๊ธฐ


```r
two_dice <-read.csv("C:/Users/jsj99/Documents/two_dice.csv")
head(two_dice)
```

```
## dice1 dice2
## 1 1 4
## 2 1 2
## 3 5 3
## 4 6 2
## 5 3 3
## 6 1 5
```

#### ์ „๋žต๊ตฌ์ƒ

##### 1.์ฒซ ๋ฒˆ์งธ ์ฃผ์‚ฌ์œ„ ๋ˆˆ์ด 4 ์ด์ƒ์ผ๋•Œ ์‹ญ์˜ ์ž๋ฆฌ์— ๋ฐฐ์น˜ํ•˜๊ธฐ


```r
result_1 <- ifelse(two_dice$dice1 >= 4,
two_dice$dice1 * 10 + two_dice$dice2,
two_dice$dice1 + two_dice$dice2 * 10)
sum(result_1)
```

```
## [1] 45241257
```

##### 2.์ฒซ ๋ฒˆ์งธ ์ฃผ์‚ฌ์œ„ ๋ˆˆ์ด 5 ์ด์ƒ์ผ๋•Œ ์‹ญ์˜ ์ž๋ฆฌ์— ๋ฐฐ์น˜ํ•˜๊ธฐ


```r
result_2 <- ifelse(two_dice$dice1 >= 5,
two_dice$dice1 * 10 + two_dice$dice2,
two_dice$dice1 + two_dice$dice2 * 10)
sum(result_2)
```

```
## [1] 44482521
```

##### 3.์ฒซ ๋ฒˆ์งธ ์ฃผ์‚ฌ์œ„ ๋ˆˆ์ด 6 ์ด์ƒ์ผ๋•Œ ์‹ญ์˜ ์ž๋ฆฌ์— ๋ฐฐ์น˜ํ•˜๊ธฐ


```r
result_3 <- ifelse(two_dice$dice1 >= 6,
two_dice$dice1 * 10 + two_dice$dice2,
two_dice$dice1 + two_dice$dice2 * 10)
sum(result_3)
```

```
## [1] 42228705
```

์ฒซ ๋ฒˆ์งธ ์ฃผ์‚ฌ์œ„ ๋ˆˆ์ด 4 ์ด์ƒ์ผ ๋•Œ ์‹ญ์˜ ์ž๋ฆฌ์— ๋ฐฐ์น˜ํ•˜๋Š” ๊ฒƒ์ด ์ดํ•ฉ์ด ๊ฐ€์žฅ ๋†’์œผ๋ฏ€๋กœ ์ตœ์„ ์˜ ์ „๋žต์ด๋‹ค.
### 2.์ตœ์„ ์˜ ์ „๋žต์ผ ๋•Œ ํ™•๋ฅ ๋ถ„ํฌ


```r
library(ggplot2)

score <- c()

for (dice1 in 1:6) {
for (dice2 in 1:6) {
if (dice1 >= 4) {
score <- c(score, dice1 * 10 + dice2)
} else {
score <- c(score, dice2 * 10 + dice1)
}
}
}

score_df <- as.data.frame(table(score))
score_df$pro <- score_df$Freq / 36

ggplot(score_df, aes(x = as.numeric(as.character(score)), y = pro)) +
geom_bar(stat = 'identity') +
labs(title='ํ™•๋ฅ ๋ถ„ํฌ', x='์ ์ˆ˜', y='ํ™•๋ฅ ')
```
![cs-1-1](/assets/images/cs-1-1.png)

### 3.๊ธฐ๋Œ“๊ฐ’ ๊ตฌํ•˜๊ธฐ


```r
exp_value <- sum(as.numeric(as.character(score_df$score))*score_df$pro)
exp_value
```

```
## [1] 45.25
```
152 changes: 152 additions & 0 deletions _posts/2023-03-23-1-2.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,152 @@
---
title: "์บก์Šคํ†ค๋””์ž์ธ 1.2๊ณผ์ œ"
layout: post
date: "2025-03-23"
---

# ์บก์Šคํ†ค๋””์ž์ธ 1.2๊ณผ์ œ

์ฃผ์‚ฌ์œ„ 3๊ฐœ๋ฅผ ๊ตด๋ ค์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•ด์„œ ์„ธ์ž๋ฆฌ ์ˆซ์ž๋ฅผ ๊ฐ€์žฅ ํฌ๊ฒŒ ๋งŒ๋“œ๋Š” ์‚ฌ๋žŒ์ด ์ด๊ธฐ๋Š” ๊ฒŒ์ž„์ด๋‹ค. ์ฃผ์‚ฌ์œ„๋ฅผ ์ฒ˜์Œ ๊ตด๋ ค์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋ฅผ ์„ธ์ž๋ฆฌ ์ˆซ์ž์—์„œ ์–ด๋А ๊ณณ์— ์‚ฌ์šฉํ•  ์ง€ ๋จผ์ € ๊ฒฐ์ •ํ•œ๋‹ค. ๊ทธ๋Ÿฐ ๋‹ค์Œ ๋‘ ๋ฒˆ์งธ๋กœ ๊ตด๋ฆฐ ์ฃผ์‚ฌ์œ„์—์„œ ๋‚˜์˜จ ๋ˆˆ์˜ ์ˆ˜๋Š” ๋‚จ์€ ๋‘์ž๋ฆฌ์˜ ์ˆซ์ž ์ค‘ ํ•˜๋‚˜๋กœ ๊ฒฐ์ •ํ•œ๋‹ค. ์„ธ ๋ฒˆ์งธ ๋‚˜์˜จ ์ฃผ์‚ฌ์œ„ ๋ˆˆ์ˆ˜๋Š” ์ž๋™์œผ๋กœ ๋‚จ์€ ์ˆซ์ž๋กœ ์‚ฌ์šฉ๋œ๋‹ค.

### 1.์ตœ์„ ์˜ ์ „๋žต ์งœ๊ธฐ

#### 1. dice1 >= 5 ์ด๋ฉด ๋ฐฑ์˜ ์ž๋ฆฌ, 5 > dice1 >= 3 ์ด๋ฉด ์‹ญ์˜ ์ž๋ฆฌ, 3 > dice1 ์ด๋ฉด ์ผ์˜ ์ž๋ฆฌ, dice2>=4 ์ด๋ฉด ๋‚จ์€ ์ž๋ฆฌ ์ค‘ ๋†’์€ ์ž๋ฆฌ

#### 2. dice1 >= 5 ์ด๋ฉด ๋ฐฑ์˜ ์ž๋ฆฌ, 5 > dice1 >= 3 ์ด๋ฉด ์‹ญ์˜ ์ž๋ฆฌ, 3 > dice1 ์ด๋ฉด ์ผ์˜ ์ž๋ฆฌ, dice2 >= 5 ์ด๋ฉด ๋‚จ์€ ์ž๋ฆฌ ์ค‘ ๋†’์€ ์ž๋ฆฌ

#### 3. dice1 == 6 ์ด๋ฉด ๋ฐฑ์˜ ์ž๋ฆฌ 5 > dice1 >=4 ์ด๋ฉด ์‹ญ์˜ ์ž๋ฆฌ, 4 > dice1 ์ด๋ฉด ์ผ์˜ ์ž๋ฆฌ, dice2 >= 4 ์ด๋ฉด ๋‚จ์€ ์ž๋ฆฌ ์ค‘ ๋†’์€ ์ž๋ฆฌ


```r
three_dice <-read.csv("C:/Users/jsj99/Documents/three_dice.csv")
head(three_dice)
```

```
## dice1 dice2 dice3
## 1 5 2 4
## 2 4 2 3
## 3 4 2 5
## 4 2 5 4
## 5 5 5 5
## 6 1 1 6
```


```r
result<- function(dice1, dice2, dice3) {
if (dice1 >= 5) {
if (dice2 >= 4) {
score <- dice1 * 100 + dice2 * 10 + dice3
} else {
score <- dice1 * 100 + dice3 * 10 + dice2
}
} else if (dice1 == 3 | dice1 == 4) {
if (dice2 >= 4) {
score <- dice2 * 100 + dice1 * 10 + dice3
} else {
score <- dice3 * 100 + dice1 * 10 + dice2

}
} else {
if (dice2 >= 4) {
score <- dice2 * 100 + dice3 * 10 + dice1
} else {
score <- dice3 * 100 + dice2 * 10 + dice1
}
}
return(score)
}
```


```r
three_dice$score <- mapply(result,three_dice$dice1, three_dice$dice2, three_dice$dice3)
sum(three_dice$score)
```

```
## [1] 503895228
```
1๋ฒˆ ๋ฐฉ๋ฒ•์ด ๊ฐ€์žฅ ์ดํ•ฉ์ด ๋†’์œผ๋ฏ€๋กœ ์ ํ•ฉํ•œ ๋ฐฉ์‹

```r
mean(three_dice$score)
```

```
## [1] 503.8952
```
### 2.์ ํ•ฉํ•œ ๋ฐฉ์‹์ผ ๋•Œ ํ™•๋ฅ ๋ถ„ํฌ ๊ทธ๋ž˜ํ”„

```r
dice_values <- 1:6
combinations <- expand.grid(dice1 = dice_values, dice2 = dice_values, dice3 = dice_values)
combinations$score <- mapply(result, combinations$dice1,combinations$dice2, combinations$dice3)
probability_distribution <- table(combinations$score) / nrow(combinations)
print(probability_distribution)
```

```
##
## 111 112 121 122 131 132
## 0.004629630 0.004629630 0.004629630 0.004629630 0.009259259 0.009259259
## 133 141 142 143 211 212
## 0.004629630 0.004629630 0.004629630 0.004629630 0.004629630 0.004629630
## 221 222 231 232 233 241
## 0.004629630 0.004629630 0.009259259 0.009259259 0.004629630 0.004629630
## 242 243 311 312 321 322
## 0.004629630 0.004629630 0.004629630 0.004629630 0.004629630 0.004629630
## 331 332 333 341 342 343
## 0.009259259 0.009259259 0.004629630 0.004629630 0.004629630 0.004629630
## 411 412 421 422 431 432
## 0.009259259 0.009259259 0.009259259 0.009259259 0.018518519 0.018518519
## 433 434 435 436 441 442
## 0.009259259 0.004629630 0.004629630 0.004629630 0.013888889 0.013888889
## 443 444 445 446 451 452
## 0.009259259 0.004629630 0.004629630 0.004629630 0.004629630 0.004629630
## 461 462 511 512 513 521
## 0.004629630 0.004629630 0.013888889 0.013888889 0.004629630 0.013888889
## 522 523 531 532 533 534
## 0.013888889 0.004629630 0.023148148 0.023148148 0.013888889 0.004629630
## 535 536 541 542 543 544
## 0.004629630 0.004629630 0.023148148 0.023148148 0.018518519 0.009259259
## 545 546 551 552 553 554
## 0.009259259 0.009259259 0.013888889 0.013888889 0.009259259 0.004629630
## 555 556 561 562 563 564
## 0.004629630 0.004629630 0.013888889 0.013888889 0.009259259 0.004629630
## 565 566 611 612 613 621
## 0.004629630 0.004629630 0.013888889 0.013888889 0.004629630 0.013888889
## 622 623 631 632 633 634
## 0.013888889 0.004629630 0.023148148 0.023148148 0.013888889 0.004629630
## 635 636 641 642 643 644
## 0.004629630 0.004629630 0.023148148 0.023148148 0.018518519 0.009259259
## 645 646 651 652 653 654
## 0.009259259 0.009259259 0.013888889 0.013888889 0.009259259 0.004629630
## 655 656 661 662 663 664
## 0.004629630 0.004629630 0.013888889 0.013888889 0.009259259 0.004629630
## 665 666
## 0.004629630 0.004629630
```

```r
df <- as.data.frame(probability_distribution)
colnames(df) <- c("score", "probability")

ggplot(df, aes(x = as.numeric(score), y = probability)) +
geom_bar(stat = "identity", fill = "steelblue") +
labs(title = "Score Probability Distribution", x = "Score", y = "Probability") +
theme_minimal()
```

![cs-1-2](/assets/images/cs-1-2.png)
## 3 ๊ธฐ๋Œ€๊ฐ’ ๊ตฌํ•˜๊ธฐ

```r
expected_value <- sum(as.numeric(names(probability_distribution)) * probability_distribution)
cat("๊ธฐ๋Œ€๊ฐ’ (Expected Value):", expected_value, "\n")
```

```
## ๊ธฐ๋Œ€๊ฐ’ (Expected Value): 504
```
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---
title: "์บก์Šคํ†ค๋””์ž์ธ 1.3๊ณผ์ œ"
layout: post
date: "2025-03-23"
---
# 1. PPDAC
PPDAC ํ†ต๊ณ„์  ๋ฌธ์ œ ํ•ด๊ฒฐ ๊ณผ์ •์„ ๊ตฌ์กฐ์ ์œผ๋กœ ์ •๋ฆฌํ•˜๋Š” ํ”„๋ ˆ์ž„์›Œํฌ๋‹ค. ์ด ๊ณผ์ •์€ ๋ฌธ์ œ๋ฅผ ์ •์˜ํ•˜๊ณ , ๊ณ„ํš์„ ์„ธ์šฐ๊ณ , ๋ฐ์ดํ„ฐ๋ฅผ ์ˆ˜์ง‘ ๋ฐ ๋ถ„์„ํ•œ ํ›„ ๊ฒฐ๋ก ์„ ๋„์ถœํ•˜๋Š” ์ˆœ์„œ๋กœ ์ง„ํ–‰๋œ๋‹ค.
### ์˜จ๋ผ์ธ ์‡ผํ•‘๋ชฐ์—์„œ ํŠน์ • ๋ธŒ๋žœ๋“œ ๊ตฌ๋งค์œจ ๊ฐ์†Œํ•˜๋Š” ์ƒํ™ฉ
#### 1.Problem (๋ฌธ์ œ ์ •์˜)
ํ•ด๋‹น ๋ธŒ๋žœ๋“œ์˜ ๊ตฌ๋งค์œจ์ด ๊ฐ์†Œํ•œ ์ด์œ 
๊ฐ์†Œํ•œ ๊ตฌ๋งค์œจ์ด ํšŒ๋ณต ๊ฐ€๋Šฅ ์—ฌ๋ถ€
#### 2.Plan (๊ณ„ํš ์ˆ˜๋ฆฝ)
์ตœ๊ทผ 3๋…„๊ฐ„์˜ ๋งค์ถœ ๋ฐ์ดํ„ฐ ํ™•๋ณด (๊ฒฝ์Ÿ์‚ฌ ํฌํ•จ)
๊ณ ๊ฐ ๋ฆฌ๋ทฐ
#### 3.Data (๋ฐ์ดํ„ฐ ์ˆ˜์ง‘)
์‡ผํ•‘๋ชฐ ๋งค์ถœ ๋ฐ์ดํ„ฐ (์š”์ผ, ์›”, ์—ฐ๋„ ๋‹จ์œ„) -> ๊ณ„์ ˆ, ์—ฐ๋„, ์›”, ์š”์ผ์ด ์˜ํ–ฅ์ด ๋ฏธ์น˜๋Š”์ง€
ํ•ด๋‹น ๋ธŒ๋žœ๋“œ ์ œํ’ˆ์˜ ์กฐํšŒ์ˆ˜, ํŒ๋งค๋Ÿ‰
๊ณ ๊ฐ ๋ฆฌ๋ทฐ ๋ฐ์ดํ„ฐ
ํ• ์ธ์ •๋ณด
#### 4.Analysis (๋ฐ์ดํ„ฐ ๋ถ„์„)
์‹œ๊ณ„์—ด ๋ถ„์„ -> ๊ณ„์ ˆ์€ ์ƒ๊ด€X, ์ „์ฒด์ ์ธ ํ•˜ํ–ฅ์„ธ
ํ• ์ธ ๊ธฐ๊ฐ„์—๋งŒ ํŒ๋งค์œจ ๊ธ‰์ฆ
๊ฒฝ์Ÿ์‚ฌ ์ œํ’ˆ ๋™์ผ ๊ธฐ๊ฐ„ ํŒ๋งค์œจ ์ƒ์Šน์„ธ -> ๊ฒฝ์Ÿ์‚ฌ ์„ ํƒ์ด ์ฆ๊ฐ€
๋ถ€์ •์ ์ธ ๋ฆฌ๋ทฐ ์ฆ๊ฐ€ (๋ฐฐ์†ก, ํ’ˆ์งˆ)
#### 5.Conclusion (๊ฒฐ๋ก  ๋„์ถœ)
ํ• ์ธ ์ •์ฑ… ์žฌ๊ฐœ
๋ฌผ๋ฅ˜ ํŒŒํŠธ๋„ˆ์‚ฌ ๋ณ€๊ฒฝ ๋ฐ ๋ฐฐ์†ก ์ง€์—ฐ ๋ณด์ƒ ์ •์ฑ… ๋„์ž…
์ œํ’ˆ ํ’ˆ์งˆ ๊ฐœ์„  ๋ฐ ๊ฐ•์กฐ


# 2. PPDAC์˜ ๋‹จ์ 
๋ฐ์ดํ„ฐ ๋ถ„์„ ๋ฐ ๋ชจ๋ธ๋ง์— ๋Œ€ํ•œ ์„ธ๋ถ€์ ์ธ ๊ฐ€์ด๋“œ ๋ถ€์กฑ
ํŠน์ • ๋ถ„์•ผ(๋จธ์‹ ๋Ÿฌ๋‹, ์‹คํ—˜ ์„ค๊ณ„)์—์„œ ์ถ”๊ฐ€์ ์ธ ๊ธฐ๋ฒ• ํ•„์š”
๋Œ€๊ทœ๋ชจ ๋ฐ์ดํ„ฐ ๋ถ„์„ ํ”„๋กœ์ ํŠธ์—๋Š” ๋ถ€์กฑํ•  ์ˆ˜ ์žˆ์Œ

# 3. PPDAC๊ณผ ์œ ์‚ฌํ•œ ํ”„๋ ˆ์ž„์›Œํฌ
| ํ”„๋ ˆ์ž„์›Œํฌ | ์ฃผ์š”ํŠน์ง• | PPDAC๊ณผ์˜ ์ฐจ์ด์  |
|:------|:------|:------|
| GAISE | ํ†ต๊ณ„ ๊ต์œก์„ ์œ„ํ•œ ๋‹จ๊ณ„๋ณ„ ์ ‘๊ทผ | ๊ต์œก ๋ชฉ์ , ์‹ค์Šต ์ค‘์‹ฌ |
| DDDM | ๋ฐ์ดํ„ฐ ๊ธฐ๋ฐ˜ ์˜์‚ฌ๊ฒฐ์ • ๊ณผ์ • | ๋น„์ฆˆ๋‹ˆ์Šค ๋ถ„์„ ์ตœ์ ํ™” |
| ๊ฐ€์„ค ๊ฒ€์ • ๊ณผ์ • | ํ†ต๊ณ„์  ๊ฒ€์ •์„ ํ†ตํ•œ ๋ฌธ์ œ ํ•ด๊ฒฐ | ํŠน์ • ๊ฒ€์ • ๋ฐฉ๋ฒ•๋ก  ์ค‘์‹ฌ |
| DOE(์‹คํ—˜ ์„ค๊ณ„) | ์‹คํ—˜์„ ํ†ตํ•œ ํ†ต๊ณ„์  ๊ฒ€์ • | ์‹คํ—˜ ๋ฐ์ดํ„ฐ ์ค‘์‹ฌ |
| CRISP-DM | ๋ฐ์ดํ„ฐ ๋งˆ์ด๋‹ ๋ฐ ๋จธ์‹ ๋Ÿฌ๋‹ ์ ์šฉ | ๋ชจ๋ธ๋ง ๊ณผ์ • ๊ฐ•์กฐ |
| DCOVA | ๋ฐ์ดํ„ฐ ๋ถ„์„ ๋ฐ ์‹œ๊ฐํ™” ํฌํ•จ | ์‹œ๊ฐํ™” ๊ณผ์ • ๊ฐ•์กฐ |
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layout: post
title: "์ฒซ ํฌ์ŠคํŒ…!"
---

# Welcome

**Hello world**, this is my first blog post.

I hope you like it!
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