Title:

Metoda wyznaczania reprezentatywnej krzywej dla ciągu małych prób

Subtitle:

Wyznaczanie krzywej dla ciągu małych prób ; Method of determining the representative curve for a series of small samples

Creator:

Tarwid, Kazimierz

Contributor:

Polska Akademia Nauk. Komitet Ekologiczny

Publisher:

Państwowe Wydawnictwo Naukowe

Place of publishing:

Warszawa

Date issued/created:

1960

Description:

Pages 217-236 ; 24 cm ; Abstract in English

Type of object:

Journal/Article

Subject and Keywords:

methodology ; scientific methods ; statistics

Abstract:

A series of partly empty small samples may make it difficult, when analysing ecological material, to obtain a picture giving a proper representation of the course of the phenomenon. Application of a moving average fails when the gaps (subsequences of zero samples) in the completion of the series by materiał are large and unequal (cf. Fig. 2, referring to material set out in Table II). The author suggests a method of calculating the curve by small sections formed from the various gaps which are limited on one side by a completed sample. The different sections may be formed either from single gaps or from two or three neighbouring gaps. The value of each section is defined by the arithmetical average of the values of the empty and full samples contained in it according to the formula:f[xn(k)] =(∑_(i=1`)^(n(k))▒〖f(xi)〗)/(n(k))Figs. 3 and 5 illustrate the elements of the curve calculated according to the method given for the example from Table II. They were calculated on the basis of two neighbouring gaps: n(2).

Relation:

Ekologia Polska. Seria B

Volume:

6

Issue:

3

Start page:

217

End page:

236

Resource type:

Text

Detailed Resource Type:

Article

Resource Identifier:

ISSN 0424-7205

Source:

MiIZ PAN, call no. P.3259 ; click here to follow the link

Language:

pol

Language of abstract:

eng

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Access:

Open