Recently a student asked about the difference between confint() and confint.default() functions, both available in the MASS library to calculate confidence intervals from logistic regression models. The following example demonstrates that they yield d...

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Tags: clodds statement, confidence intervals, confint(), logistic regression, MASS library, ods system, proc logistic, profile likelihood, SAS formats

Posted in SAS | Comments Off on Example 9.14: confidence intervals for logistic regression models

Recently a student asked about the difference between confint() and confint.default() functions, both available in the MASS library to calculate confidence intervals from logistic regression models. The following example demonstrates that they yield d...

Read more »

Tags: clodds statement, confidence intervals, confint(), logistic regression, MASS library, ods system, proc logistic, profile likelihood, SAS formats

Posted in SAS | Comments Off on Example 9.14: confidence intervals for logistic regression models

Recently a student asked about the difference between confint() and confint.default() functions, both available in the MASS library to calculate confidence intervals from logistic regression models. The following example demonstrates that they yield d...

Read more »

Tags: clodds statement, confidence intervals, confint(), logistic regression, MASS library, ods system, proc logistic, profile likelihood, SAS formats

Posted in SAS | Comments Off on Example 9.14: confidence intervals for logistic regression models

Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can't be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa...

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Tags: binning, heat map, hexagon, hexbin package, hexbin(), large datasets, MASS library, Matrix, multivariate normal, mvrnorm(), proc gmap, proc simnormal

Posted in SAS | Comments Off on Example 9.1: Scatterplots with binning for large datasets

Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can't be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa...

Read more »

Tags: binning, heat map, hexagon, hexbin package, hexbin(), large datasets, MASS library, Matrix, multivariate normal, mvrnorm(), proc gmap, proc simnormal

Posted in SAS | Comments Off on Example 9.1: Scatterplots with binning for large datasets

Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can't be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa...

Read more »

Tags: binning, heat map, hexagon, hexbin package, hexbin(), large datasets, MASS library, Matrix, multivariate normal, mvrnorm(), proc gmap, proc simnormal

Posted in SAS | Comments Off on Example 9.1: Scatterplots with binning for large datasets