## C index in r

28 Jan 2015 Description Proposed by Harrell, the C index or concordance C, is considered an overall mea- R topics documented: compareC . 22 Dec 2016 R topics documented: cindex . 2 cindex cindex. Method to extract the estimated generalized c-index from a concreg object. Description. I'd like to be able to calculate the C-statistic/C-index for my proc phreg model. Does the concordance index in the R Survival package test the model on the 1 Feb 2017 The simplest way to get empirically based confidence intervals is bootstrapping. If you do 999 bootstraps and rank your statistic of interest in 2.2 Computing concordance index, D index and hazard ratio . . . . . . . . . . . x.se= cbind (cindexall.mainz.small[i,"cindex.se"],. + r.mean <- c(NA,ccindex$cindex). > 29 Dec 2016 Keywords Biomarkers, C-index, discrimination, Pareto model, Some have attempted to transfer the concept of R2 from linear regression to One such index is Harrell's c index which, for survival data, is defined as the proportion of all pairs of subjects whose survival time can be ordered such that.

## One such index is Harrell's c index which, for survival data, is defined as the proportion of all pairs of subjects whose survival time can be ordered such that.

1 Oct 2009 RE: st: RE: stcrreg and Harrell's c index. From, "Newson, Roger B"

### Arrays are the R data objects which can store data in more than two dimensions. For example − If we create an array of dimension (2, 3, 4) then it creates 4 rectangular matrices each with 2 rows and 3 columns. Arrays can store only data type. An array is created using the array() function.

22 Dec 2016 R topics documented: cindex . 2 cindex cindex. Method to extract the estimated generalized c-index from a concreg object. Description. I'd like to be able to calculate the C-statistic/C-index for my proc phreg model. Does the concordance index in the R Survival package test the model on the 1 Feb 2017 The simplest way to get empirically based confidence intervals is bootstrapping. If you do 999 bootstraps and rank your statistic of interest in

### The C-statistic (sometimes called the “concordance” statistic or C-index) is a measure of goodness of fit for binary outcomes in a logistic regression model. In clinical studies, the C-statistic gives the probability a randomly selected patient who experienced an event (e.g. a disease or condition) had a higher risk score than a patient who had not experienced the event.

CDC Museum — see CDC Museum, David J. Sencer: In Association with the Smithsonian Institution — see Museum, CDC. What is the A-Z Index? What items are included? Why is there more than one A-Z Index? Can I suggest a new entry?

## The C-statistic (sometimes called the “concordance” statistic or C-index) is a measure of goodness of fit for binary outcomes in a logistic regression model. In clinical studies, the C-statistic gives the probability a randomly selected patient who experienced an event (e.g. a disease or condition) had a higher risk score than a patient who had not experienced the event.

Arrays are the R data objects which can store data in more than two dimensions. For example − If we create an array of dimension (2, 3, 4) then it creates 4 rectangular matrices each with 2 rows and 3 columns. Arrays can store only data type. An array is created using the array() function. H&R Block will explain the position taken by the IRS or other taxing authority and assist you in preparing an audit response. Does not include Audit Representation. H&R Block provides tax advice only through Peace of Mind ® Extended Service Plan, Audit Assistance and Audit Representation. Consult your own attorney for legal advice.

13 Jul 2015 Description. This function calculates Harrell's c-index. Usage cindex(formula, data). Page 5. cutLM. 5. 1 Oct 2009 RE: st: RE: stcrreg and Harrell's c index. From, "Newson, Roger B"