The Demopædia Encyclopedia on Population is under heavy modernization and maintenance. Outputs could look bizarre, sorry for the temporary inconvenience

# Talk:15

## 150 (double checked)

• 150: 'movement' is OK but strange usage. Better would be: When values of a demographic variable are available over time,.....--Stan BECKER 19:09, 24 September 2014 (CEST)
done (checked).--Nicolas Brouard 13:39, 26 November 2016 (CET)
I agree (double checked) --Cristina Giudici (talk) 11:34, 13 December 2016 (CET)

## 150-7 note (double checked)

• 150-7 (note): Better usage is "due to chance". Changed. --Stan BECKER 19:09, 24 September 2014 (CEST)
Checked --Cristina Giudici (talk) 11:38, 13 December 2016 (CET)

## 152-5 (double checked)

• 152-5: Do you want to mention heaping/digit preference other than on age. We have same for many duration variables: duration of marriage, duration of breastfeeding, birth intervals, etc.--Stan BECKER 19:11, 24 September 2014 (CEST)
, like heaping/digit preference (added). To be checked.--Nicolas Brouard 13:45, 26 November 2016 (CET)
I don't think Stan was suggesting to add heaping/digit preference at the end of this sentence, but instead to add, after we mention heaping or digit preference with respect to age in 152-2, the fact that it is not limited to age. I suggested another modification, which I think is closer to what Stan had in mindPatrick HEUVELINE (talk) 17:42, 18 July 2017 (CEST)
Thank you Patrick. Double checked. --Nicolas Brouard (talk) 17:37, 28 December 2017 (CET)

## 153-5 (double checked)

It is an important aspect of demographic theory.--Nicolas Brouard 16:12, 26 December 2009 (UTC)
• The Trilingual Demographic Dictionary Arabic-English-French of 1988 uses forecast table.--Nicolas Brouard 19:54, 11 June 2012 (CEST)
Forecast tables 5★ provide numerical values of demographic functions, like survival functions (431-6) for example, which can be used directly for population forecast (cf. 720-2).--Nicolas Brouard 16:29, 5 September 2012 (CEST)
Instead of Failed to parse (Missing <code>texvc</code> executable. Please see math/README to configure.): l_x or even $l_x+l_{x+1}}{2$ (when linear approximation hold), the survival function is(was) often given by $L_{x+1}}{L_x$ i.e the probability for somebody which age relies between x and x+1 at time t, to survive one year (to be alive at time t+1, and aged between x+1 and x+2).--Nicolas Brouard 18:15, 5 September 2012 (CEST)

## 153-6 (double checked)

When a population is classified in two or more categories according to age, like economic status (women in the labor force or out of the labor force, for example), marital statuses, regions etc. and when continuous flows between categories are possible over time even if the individual state can usually be measured only at discrete times (waves of a longitudinal study, queries to population registers etc.), increment-decrement methods 6★ or multi-state methods 6★ are more and more developed and used. (first draft) --Nicolas Brouard 18:57, 5 September 2012 (CEST)
Substitute "are more appropriate". Done. --Stan BECKER 19:15, 24 September 2014 (CEST)
double checked--Nicolas Brouard 13:46, 26 November 2016 (CET)

## 155-1 (double checked)

• 155-1: Methods of graphic representation 1 or diagrammatic representation 1 may be used to illustrate an argument. Del 'an argument' Substitute "the data". Done.--Stan BECKER 19:19, 24 September 2014 (CEST)
double checked--Nicolas Brouard 13:46, 26 November 2016 (CET)