Differences

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--- z_score [2018/09/18 08:08] – hkimscil
+++ z_score [2019/09/23 11:56] – hkimscil
@@ Line 9: / Line 9: @@
 in R, pnorm(zscore) or pnorm(sd)
-<code>pnorm(1) - pnorm(-1)</code> 혹은 percentage로는
+<code>pnorm(1) - pnorm(-1)
-<code>round(100* (pnorm(1) - pnorm(-1))) </code>
+pnorm(2) - pnorm(-2)
+pnorm(3) - pnorm(-3)
+</code>
-<code>round(100* (pnorm(2) - pnorm(-2)))
+<code>> pnorm(1) - pnorm(-1)
-round(100* (pnorm(1.96) - pnorm(-1.96)))
+[1] 0.6826895
+> pnorm(2) - pnorm(-2)
+[1] 0.9544997
+> pnorm(3) - pnorm(-3)
+[1] 0.9973002
 </code>
 in R, qnorm(percentage)
@@ Line 20: / Line 27: @@
 qnorm(.975)
 </code>
+<code>
+qnorm(0.025)
+qnorm(0.975)
+qnorm(0.01)
+qnorm(0.99)
+qnorm(0.001)
+qnorm(0.999)
+</code>