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| ① |
`x_i = sqrt{x_i}` |
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| ② |
`x_i = x_i^(0.277)` |
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| ③ |
`x_i = x_i^0.25 ` |
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| ④ |
`x_i = ln(x_i)` |
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| ⑤ |
`x_i = frac{1}{sqrt(x_i)} ` |
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| ⑥ |
`x_i = frac{1}{x_i} ` |
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| ⑦ |
`x_i = frac{1}{x_i^2} ` |
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| ⑧ |
`x_i = arcsin(x_i)^½ ` |
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| ⑨ |
`x_i = log (frac{x_i}{1-x_i}) ` |
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| ⑩ |
`x_i = 0.5 times log(frac{1+x_i}{1-x_i})` |
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