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Successive Iteration

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Journal Article
Demography (1973) 10 (3): 459–467.
Published: 01 August 1973
...Suddhendu Biswas Abstract The purpose of the present communication is to generalize a model of Brass’s (1958), relating to the probability distribution of births to mothers with completed fertility. A simple method of estimating the parameters of the model, based on successive iterations, has been...
Journal Article
Demography (1972) 9 (2): 249–255.
Published: 01 May 1972
...S. N. Singh; T. Bhaduri Abstract The duration of time between two successive births or between marriage and first birth is an indicator of the level of fertility of a couple. Potter and Parker (1964) and Singh (1961, 1967) have suggested the Type I Geometric as a distribution appropriate...
Journal Article
Demography (1966) 3 (1): 259–275.
Published: 01 March 1966
... to the failure section, statement number 200. If D = 0, calculate Ap and Ap. First cal- calculate the two numerators. Test Ap and A If both are insignificant, branch to statement 100, the success section. If Ap and Aq are still significant, test the counter. If 25 iterations have been com- pleted, branch...
Journal Article
Demography (1970) 7 (2): 155–167.
Published: 01 May 1970
... that equation may be taken as a second approximation to r(k). The steps may be repeated as many times as is necessary to insure that the solutions ob- tained at successive iterations agree up to the required number of decimal places. Onee the solutions for r(l), r(2), r(k) are at hand, the solutions for R (1...
Journal Article
Demography (1970) 7 (2): 151–154.
Published: 01 May 1970
...) is a moment-generating function M (-r) . Taking logarithms of both sides, we obtain: R.- I fIJ exp {-rx}p(x)m(x) dx = Ra-I. a (4) us apply an iterative method to deter- mine an explieit series Ior ro. It is neees- sary to define R" = J: x"p(x)m(x) dx, (n = 0, 1,2, " (3) In general Ro is not equal to unity...
Journal Article
Demography (1985) 22 (4): 611–623.
Published: 01 November 1985
... fertility schedule by using an iterative procedure. Calculation begins with estimation of parity at exact age a for every cohort that attains age a between the censuses-Pla) for the ith such cohort, of which there are five when the censuses are five years apart. The mean parity of persons attaining...
Journal Article
Demography (1964) 1 (1): 194–211.
Published: 01 March 1964
... sense) solution for a given matrix with a specified degree of decimal accuracy, In order to account for the variance of the correla- tion matrix, successive columns of the principal axes factor loading matrix are extracted by means of an iterative process suggested by Harold Hotelling. Mter each...
Journal Article
Demography (2021) 58 (6): 2265–2289.
Published: 01 December 2021
... of success, partially because many couples see financial security as a prerequisite for marriage ( Smock et al. 2005 ; Xie et al. 2003 ). Whom one marries also matters. Given high levels of spousal resemblance in education and income, advantage (or disadvantage) is concentrated within couples ( Schwartz...
FIGURES | View All (4)
Includes: Supplementary data
Journal Article
Demography (1972) 9 (1): 35–50.
Published: 01 February 1972
... and iterating only on the other two constants have not been successful. THE CHANGING PATI'ERN OF CANADIAN FERTILITY To illustrate the use of this form of parameterization, we assume that all of the fits are equally tolerable and observe the trends in the constants. Table 6 pre- sents the constants...
Journal Article
Demography (1990) 27 (1): 149–163.
Published: 01 February 1990
... adjustment technique was applied to the Indian data to derive the final estimates of transition probabilities of age misstatement. The iterative adjustment was continued until the sum of the absolute differences of two successive estimates of column adjustments was less than .001. With the data herein...
Journal Article
Demography (1971) 8 (4): 525–536.
Published: 01 November 1971
... used to obtain new estimates. This iterative process con- tinues until the difference in successive estimates for all parameters falls below some prescribed tolerance. In our par- ticular case b1 and c were estimated in this manner for successive values of 0, spaced at intervals of 0.5 between 0.0...
Journal Article
Demography (1982) 19 (4): 549–565.
Published: 01 November 1982
...)/N. iterate ofthe probability generating func- Thus the entire probability distribution tion of daughters, fz(s) = f[f(s The and all of the moments of the sibship expected number of granddaughters will distribution can be obtained from the be !z'(1), or the value at s = 1 of fz'(s) = daughters...
Journal Article
Demography (2015) 52 (1): 183–208.
Published: 21 January 2015
... the population at risk in successive age groups as we move along each projection step. To summarize, the iterative longitudinal projection procedure we described yields (1) the number of marriages occurring for males and females for each age and educational category at different points in time and the relevant...
FIGURES | View All (5)
Journal Article
Demography (2001) 38 (1): 79–95.
Published: 01 February 2001
... of the parameter (Johnson and Albert 1999). In maximum likelihood estimation the standard approach is to take the partial derivatives of the log-likelihood with respect to each parameter and to iteratively solve the system of differential equations set to 0. In Bayesian estimation the standard approach...
Journal Article
Demography (1975) 12 (2): 303–312.
Published: 01 May 1975
... the second equation in (3), that is, if we relax the assumption that the total count in the second census is correct, then, by proper substitutions successively, we obtain mathematically using the following no- tation: i = 1, 2, , 16, the 16 age groups 0-4,5-9 , , 70-74,75+; P; the known reported population...
Journal Article
Demography (2011) 48 (1): 127–152.
Published: 23 February 2011
... of these differences have been theorized in both biological and social terms; however, social explanations have been more successful in explaining these differences in light of the crucial importance of social conditions in shaping racial health patterns (Centers for Disease Control and Prevention [CDC] 2004 ; Frank...
Journal Article
Demography (1984) 21 (4): 623–645.
Published: 01 November 1984
... for the 1940 and 1950 censuses. The new population estimates are calculated by combining the most recent figures on the 1960 population with estimates of the demographic components of change for the 1950s and 1940s in an iterative reverse cohort-component projection algorithm. Among the principal findings...
Journal Article
Demography (1981) 18 (2): 231–244.
Published: 01 May 1981
... values for the iterative numerical algorithms needed to find the least squares fits. In the situation which we focus on, ran- dom variation is negligible and the weights described above are not really ap- propriate because the variances are essen- tially zero. If standard functions are fitted by the best...
Journal Article
Demography (1969) 6 (4): 445–454.
Published: 01 November 1969
... between first-in- terview desires and completed fertility can be observed within each of the cate- gories of religion, education and family- planning success in Table 1. It is of addi- tional interest that among women who desired the same number of children at the first interview (reading down the columns...
Journal Article
Demography (2019) 56 (1): 201–228.
Published: 06 December 2018
.... Ideally, researchers would use psychometric techniques to explore and identify constructs underlying these items prior to using these items in research to draw substantive conclusions. Psychometric analysis is an iterative process involving creating and testing survey measures, conducting exploratory...
FIGURES | View All (4)
Includes: Supplementary data