Glossary entry (derived from question below)
Spanish term or phrase:
heterocedasticidad
English translation:
Heteroscedasticity
Added to glossary by
David Brown
Feb 14, 2007 07:28
17 yrs ago
1 viewer *
Spanish term
Chile
17 years in technology and mining
Native in: English 
Works in: Spanish to English, English to Spanish
heterocedasticidad
Spanish to English
Bus/Financial
Transport / Transportation / Shipping
This term occurs in a scientific research paper on public transportation. This term does appear in the Proz glossary, but without any explanation as to what it means.
CONTEXT : "Dentro de la teoría de la utilidad aleatoria existen varios modelos de elección discreta, que suponen una distribución de probabilidad conjunta para el término aleatorio. Otros consideran cierta correlación entre las variables definidas, incluso la existencia de ***heterocedasticidad*** (distinta varianza entre alternativas); "
CONTEXT : "Dentro de la teoría de la utilidad aleatoria existen varios modelos de elección discreta, que suponen una distribución de probabilidad conjunta para el término aleatorio. Otros consideran cierta correlación entre las variables definidas, incluso la existencia de ***heterocedasticidad*** (distinta varianza entre alternativas); "
Proposed translations
(English)
| 5 +3 | Heteroscedasticity |
David Brown
|
Proposed translations
+3
32 mins
Selected
Heteroscedasticity
Heteroscedasticity
From Wikipedia, the free encyclopedia
Plot with random data showing heteroscedasticity.In statistics, a sequence or a vector of random variables is heteroscedastic if the random variables in the sequence or vector may have different variances. The complementary concept is called homoscedasticity. (Note: There seems to be no standard agreed-upon spelling for these words; they are sometimes spelled homo- or heteroskedastic or (incorrectly) -schedastic, depending on location and personal taste.)
When using a variety of techniques in statistics, such as ordinary least squares (OLS), a number of assumptions are typically made. One of these is that the error term has a constant variance. This will be true if the observations of the error term are assumed to be drawn from identical distributions. Heteroscedasticity is a violation of this assumption.
From Wikipedia, the free encyclopedia
Plot with random data showing heteroscedasticity.In statistics, a sequence or a vector of random variables is heteroscedastic if the random variables in the sequence or vector may have different variances. The complementary concept is called homoscedasticity. (Note: There seems to be no standard agreed-upon spelling for these words; they are sometimes spelled homo- or heteroskedastic or (incorrectly) -schedastic, depending on location and personal taste.)
When using a variety of techniques in statistics, such as ordinary least squares (OLS), a number of assumptions are typically made. One of these is that the error term has a constant variance. This will be true if the observations of the error term are assumed to be drawn from identical distributions. Heteroscedasticity is a violation of this assumption.
Peer comment(s):
| agree |
Margarita Ezquerra (Smart Translators, S.L.)
45 mins
|
| agree |
Noni Gilbert Riley
: Heterocedasticity is the spelling I know. P´s spelling comment looks likely, although indeed these v technical ex-Greek words sometimes have alternative spellings.
2 hrs
|
| agree |
Patricia Rosas
: according to Harper Collins Economics Dictionary, David's spelling is right (could it be a US/UK difference?)
8 hrs
|
4 KudoZ points awarded for this answer.
Comment: "Selected automatically based on peer agreement."
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