Home > Publications . Search All . Browse All . Country . Browse PSC Pubs . PSC Report Series

PSC In The News

RSS Feed icon

Smock cited in amicus brief for Supreme Court case on citizenship rights for foreign-born children of unwed parents

Levy, Buchmueller and colleagues examine Medicaid expansion's impact on ER visits

ISR data show large partisan gap in consumer expectations for economy

More News

Highlights

MiCDA Research Fellowship - applications due July 21, 2017

U-M awarded $58 million to develop ideas for preventing and treating health problems

Bailey, Eisenberg , and Fomby promoted at PSC

Former PSC trainee Eric Chyn wins PAA's Dorothy S. Thomas Award for best paper

More Highlights

Recovering Event Histories by Cubic Spline Interpolation

Publication Abstract

Bergstrom, Theodore, and David Lam. 1989. "Recovering Event Histories by Cubic Spline Interpolation." Mathematical Population Studies, 1(4): 327-55.

If event history data are recorded in discrete intervals of time, errors are introduced when the data are converted from the unit in which they were recorded, such as date, to another unit such as age or duration. The problem is illustrated by the inconsistent general method for treating problems of this type using cubic spline interpolation. The method is used to adjust U.S. age at marriage schedules, explaining a substantial part of the discrepancy in the 1960 and 1970 censuses.

Browse | Search : All Pubs | Next