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"R t검정"의 두 판 사이의 차이

 
(같은 사용자의 중간 판 13개는 보이지 않습니다)
2번째 줄: 2번째 줄:
;R t.test()
;R t.test()


==1표본==
==1표본 t검정==
<source lang='r'>
{{참고|R 1표본 t검정}}
(x <- rnorm(12))
<syntaxhighlight lang='r' run>
##  [1] -0.80677919 -0.53470426  0.98430798  0.70428020  0.25909529  0.05287603
x = c(1:10)
##  [7]  0.39817250  0.15529129 -1.14096331  0.04737570  0.01691522  0.74616298
t.test(x)
t.test(x)
##
</syntaxhighlight>
## One Sample t-test
##
## data:  x
## t = 0.4003, df = 11, p-value = 0.6966
## alternative hypothesis: true mean is not equal to 0
## 95 percent confidence interval:
##  -0.3306406  0.4776456
## sample estimates:
##  mean of x
## 0.07350254
</source>


==2표본==
==2표본 t검정==
<source lang='r'>
{{참고|R 2표본 t검정}}
t.test(1:10, y = c(7:20))
<syntaxhighlight lang='r' run>
##
A1 = c(30.02, 29.99, 30.11, 29.97, 30.01, 29.99)
## Welch Two Sample t-test
A2 = c(29.89, 29.93, 29.72, 29.98, 30.02, 29.98)
##
t.test(A1, A2)
## data:  1:10 and c(7:20)
</syntaxhighlight>
## t = -5.4349, df = 21.982, p-value = 1.855e-05
<syntaxhighlight lang='r' run>
## alternative hypothesis: true difference in means is not equal to 0
a = c(1,2,3,4,5,6,7,8,9,10)
## 95 percent confidence interval:
b = c(5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20)
##  -11.052802  -4.947198
t.test(x=a, y=b)
## sample estimates:
</syntaxhighlight>
## mean of x mean of y
##      5.5      13.5
</source>
<source lang='r'>
t.test(1:10, y = c(7:20, 200))
##
## Welch Two Sample t-test
##
## 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==
59번째 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[ | ]

R 1표본 t검정 문서를 참고하십시오.
x = c(1:10)
t.test(x)

3 2표본 t검정[ | ]

R 2표본 t검정 문서를 참고하십시오.
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[ | ]

원본 주소 "https://zetawiki.com/w/index.php?title=R_t검정&oldid=614972"
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