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Ralph Winters's Discussions (153)

Discussions Replied To (117) Replies Latest Activity

"It's not the actual number that implies discrete/continuous.  It is the domain over…"

Ralph Winters replied May 13, 2011 to Myths- Discrete and Continuous Data

1 May 13, 2011

"Forecasting would be a subset of prediction. Any time you predict into the future it…"

Ralph Winters replied Mar 31, 2011 to Difference between Prediction and Forecasting

5 Apr 26, 2011

"  It depends on what the purpose of the sample is. If you are only looking to extrac…"

Ralph Winters replied Feb 24, 2011 to Random sampling from a population

3 Feb 25, 2011

"Sharath - Overfitting the model is always a possiblility when you have many variable…"

Ralph Winters replied Feb 23, 2011 to Using observation weights to correct bias

5 Feb 23, 2011

"Sharath - After you construct the observation weight you will need to store it on th…"

Ralph Winters replied Feb 22, 2011 to Using observation weights to correct bias

5 Feb 23, 2011

"You are only working with 100 observations?  If so, you don't have enough data to ma…"

Ralph Winters replied Feb 8, 2011 to Model Accuracy - In logistic Regression

7 Feb 8, 2011

"Hari, What are the specific statistics associated with the 88% and 27% prediction ac…"

Ralph Winters replied Feb 7, 2011 to Model Accuracy - In logistic Regression

7 Feb 8, 2011

"There are many different kinds of correlation.  The correlation of which you speak i…"

Ralph Winters replied Feb 5, 2011 to Query on finding correlation between binary target variable and continuous input variable

3 Aug 19, 2011

"  Minethedata:   http://www.med.univ-rennes1.fr/wkf/stock/RENNES20100407100014blavio…"

Ralph Winters replied Feb 5, 2011 to How to determine the 'Optimum' sample size

5 Feb 5, 2011

"by variables,  I mean main effects in the model.  There is a paper by Peduzzi that d…"

Ralph Winters replied Feb 3, 2011 to How to determine the 'Optimum' sample size

5 Feb 5, 2011

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