The value 1.bi is now 1.pr and 2.in is now 2.am.

The values of the 'type' variable in the parameter names have changed.

the parameter 'replicate_var') is in use. In the reports the values for 'Std Err' and 'Prob>|t|' are not reported if a weight variable (i.e.This change is reflected in the DISTRIB macro (see below). The parameter name is unchanged, but any two part recall variable can be used. In the parameter 'weekend', the user's variable name is no longer changed to 'WEEKEND'.For amount models a consumption value of 0 is changed to half the minimum amount consumed.Otherwise if there are 10 or fewer subjects with two positive recalls in any of the models, a warning is printed in the log, stating that results might be unstable. In the uncorrelated and correlated models there must be at least one subject with two positive recalls, or else MIXTRAN will be stopped.In the unlikely event that this criterion is not met the execution of the MIXTRAN macro is stopped. In the amount model, there must be at least two subjects with at least two positive recalls.If a replicate variable is in use the percentage shown will be weighted.

a correlated or an uncorrelated model) a frequency is provided grouping subjects according to the number of observed 24-hour recalls by the number of recalls with consumption greater than 0 for the food being analyzed. For an episodically consumed food (i.e.This is to ensure that the SAS NLMIXED procedure detects repeated records belonging to the same subject. The data are now sorted by subject and sequence number (the parameters 'subject' and 'repeat').Release notes for the current macros (describing changes and enhancements since version 1.1.) MIXTRAN and DISTRIB Release Notes Older versions (1.1) are available here, for analysts who wish to reproduce past results. The current version of the macros is 2.1. Applications of these macros are described in Tooze et al, 2006 and Kipnis et al, 2009. The DISTRIB and INDIVINT macros are generally used in conjunction with the MIXTRAN macro.ĭocumentation for all three macros is provided in the User's Guide for Analysis of Usual Intakes: For use with versions 2.1 of the Mixtran, Distrib and Indivint SAS macros. The MIXTRAN macro alone is sufficient for testing covariate effects on intakes of a dietary component. The problem is fixed in SAS 9.2 TS2M2, and this error is not encountered in SAS 9.1.3. Read the SAS Problem Note and get a link to the Hot Fix. The SAS Institute has reported an error that can occur when running SAS IML in SAS 9.2 TS1MO - the error relates to variables with missing values. * Note that the INDIVINT macro requires SAS IML. INDIVINT Macro*: uses parameter estimates from MIXTRAN or other appropriate model to predict individual food or nutrient intake for use in a disease model.DISTRIB Macro: uses parameter estimates from MIXTRAN and a Monte Carlo method to estimate the distribution of usual intake for a food or nutrient.MIXTRAN Macro: fits a model to obtain parameter estimates and allows for the evaluation of covariate effects.

Three macros are available to support modeling of a single dietary component (either consumed nearly every day or episodically):

Sas institute