Talk:Cumulative frequency analysis

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This article was first made on 11:56, 12 June 2007 (UTC)

[edit] various problems

I have a number of qualms about the way this article is now written. For now I'll limit myself to the easy one: style of mathematical notation. Consider this:

When the data are arranged in descending order, the maximum first and the minimum last, and Rd is the rank number, the cumulative frequency is written as F_P<X = Rd/(n+1).

When the data are arranged in ascending order, the minimum first and the maximum last, and Ra is the rank number, the cumulative frequency is written as F_P<X = 1-Ra/(n+1).

Here's a way of writing it that is consistent with conventional Wikipedia usage:

When the data are arranged in descending order, the maximum first and the minimum last, and Rd is the rank number, the cumulative frequency is written as F_P < X = Rd/(n + 1).

When the data are arranged in ascending order, the minimum first and the maximum last, and Ra is the rank number, the cumulative frequency is written as F_P < X = 1 − Ra/(n + 1).

Contrast three styles with each other:

F_P<X = 1-Ra/(n+1).

F_P < X = 1 − Ra/(n + 1).

The second and third are consistent with Wikipedia's conventions. The second fits well with "inline" math notation; the third with "displayed" math notation. The third form has been known to cause various problems when used in an "inline" as opposed to "displayed" setting.

To be continued.... Michael Hardy 20:09, 18 June 2007 (UTC)

PS: See also Wikipedia:Manual of Style (mathematics). More later... Michael Hardy 20:17, 18 June 2007 (UTC)

Thanks Michael Hardy. I see your point. I am new to Wikipedia + I am learning + I will do my best to adjust.
R.J.Oosterbaan 07:44, 19 June 2007 (UTC)

Changes were made on the basis of Michael Hardy's comments. R.J.Oosterbaan 22:47, 19 June 2007 (UTC)

[edit] Title

This article should be renamed to something like "Cumulative Frequency Analysis" or "CDF Estimation" since there is already a Cumulative Distribution Function article.--Adoniscik (talk) 22:49, 27 January 2008 (UTC)

To begin with I have added an internal link to Cumulative Distribution Function under See Also . R.J.Oosterbaan (talk) 19:16, 28 January 2008 (UTC)

The page Cumulative frequency is renamed to Cumulative frequency analysis and the original page Cumulative frequency is now a disambiguation page linking to Cumulative Distribution Function and the renamed page. R.J.Oosterbaan (talk) 23:21, 5 February 2008 (UTC)