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--- r:lecture [2015/11/05 01:33] – hkimscil
+++ r:lecture [2015/11/05 05:49] (current) – hkimscil
@@ Line 24: / Line 24: @@
 qqline(x)
+====== 함수만들기 ======
+se = function(x) sd(x)/sqrt(length(x))
+====== 시뮬레이션 ======
+set.seed(1234)
+height = rnorm(n=100000, mean=175, sd=5)
+mean(height)
+M=NULL
+V=NULL
+for (i in 1:10000) {
+x=sample(height, size=100)
+M[i]=mean(x)
+V[i]=var(x)
+}
+====== t-test ======
+x = c{15.5, 11.21, 12.67, 8.877, 12.15, 9.88, 2.06, 14.5, 0, 4.97}