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22 results for “from:Hsiao-nan Cheung”

How to Draw a Candle Chart using ggplot2?
Hsiao-nan Cheung · Feb 21, 2016 · r-sig-finance

Dear All, Recently I tried to plot a candle chart using package ggplot2, and have tried geom_boxplot function, but here I have some problems. Since a candle chart haven't a middle bar, when I use stat = "identity" to...

Statistically significant in linear and non-linear model
Hsiao-nan Cheung · Oct 7, 2008 · r-sig-finance

Thank you for your comments. Maybe I could specify my question more clearly. For example, a linear model is y = alpha + beta*x + epsilon, and this beta is not statistically significant. Then a non-linear model, e.g., y = eta...

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