"R t검정"의 두 판 사이의 차이

 
(같은 사용자의 중간 판 14개는 보이지 않습니다)
2번째 줄: 2번째 줄:
;R t.test()
;R t.test()


==일표본평균 추정==
==1표본 t검정==
<source lang='r'>
{{참고|R 1표본 t검정}}
t.test(1:10, y = c(7:20))
<syntaxhighlight lang='r' run>
##
x = c(1:10)
## Welch Two Sample t-test
t.test(x)
##
</syntaxhighlight>
## data:  1:10 and c(7:20)
 
## t = -5.4349, df = 21.982, p-value = 1.855e-05
==2표본 t검정==
## alternative hypothesis: true difference in means is not equal to 0
{{참고|R 2표본 t검정}}
## 95 percent confidence interval:
<syntaxhighlight lang='r' run>
##  -11.052802  -4.947198
A1 = c(30.02, 29.99, 30.11, 29.97, 30.01, 29.99)
## sample estimates:
A2 = c(29.89, 29.93, 29.72, 29.98, 30.02, 29.98)
## mean of x mean of y
t.test(A1, A2)
##      5.5      13.5
</syntaxhighlight>
</source>
<syntaxhighlight lang='r' run>
<source lang='r'>
a = c(1,2,3,4,5,6,7,8,9,10)
t.test(1:10, y = c(7:20, 200))
b = c(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20)
##
t.test(x=a, y=b)
## Welch Two Sample t-test
</syntaxhighlight>
##
## data:  1:10 and c(7:20, 200)
## t = -1.6329, df = 14.165, p-value = 0.1245
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -47.242900  6.376233
## sample estimates:
## mean of x mean of y
##  5.50000  25.93333
</source>


==같이 보기==
==같이 보기==
40번째 줄: 30번째 줄:
* https://www.rdocumentation.org/packages/stats/versions/3.6.0/topics/t.test
* https://www.rdocumentation.org/packages/stats/versions/3.6.0/topics/t.test


[[분류: R 통계검정]]
[[분류: R stats]]
[[분류: R stats]]
[[분류: t검정]]

2020년 12월 5일 (토) 22:57 기준 최신판

1 개요[ | ]

R t.test()

2 1표본 t검정[ | ]

x = c(1:10)
t.test(x)

3 2표본 t검정[ | ]

A1 = c(30.02, 29.99, 30.11, 29.97, 30.01, 29.99)
A2 = c(29.89, 29.93, 29.72, 29.98, 30.02, 29.98)
t.test(A1, A2)
a = c(1,2,3,4,5,6,7,8,9,10)
b = c(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20)
t.test(x=a, y=b)

4 같이 보기[ | ]

5 참고[ | ]

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