Created
January 25, 2011 13:09
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example of converting a non-normal dist to normal
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| ## make some non norm data | |
| d1 <- rnorm(20, 5, 1) | |
| d2 <- rnorm(5, 10, 2) | |
| d <- c(d1,d2) | |
| hist(d) | |
| ## no mean adjustment | |
| myUniform <- ecdf( d )( d ) | |
| mean( myUniform ) | |
| ## hey that mean's not .5! | |
| myNorm <- qnorm( myUniform ) ## whoops.. inf value | |
| ## mean adjust | |
| myUniform <- ecdf( d )( d ) | |
| mean( myUniform ) | |
| myUniform <- myUniform - (mean( myUniform ) - .5) | |
| mean( myUniform ) | |
| myNorm <- qnorm( myUniform ) | |
| mean(myNorm) | |
| sd(myNorm) |
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