Hi! Can some one help me understand how to validate Quantile Regression Model?

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Leaf area of tomato ?

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How to preform densitometry on SDS-page bands?

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XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds?

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How can I prepare virus for a TEM or SEM imaging?

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Handling Missing Data and Building a Predictive Model with Incomplete Information ?

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David Eugene Booth

I would suggest using cross validation either bootstrap or 10-fold. See the links below for some excellent references. Best, wishes.

https://www.amazon.com/Clinical-Prediction-Models-Development-Validation-ebook/dp/B001T5WLQG/ref=sr_1_1?ie=UTF8&qid=1470559241&sr=8-1&keywords=steyerberg+regression#nav-subnav

https://www.amazon.com/Regression-Modeling-Strategies-Applications-Statistics/dp/3319194240

Abdelaziz AYARI

Try with this link and good luck:

https://rdrr.io/cran/rms/man/validate.Rq.html