# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 12 Search : correlation
 anticorrelation   پادهم‌باز‌آنش   pâdhambâzânešFr.: anticorrelation   Statistics: The correlation coefficient of two random variables X and Y is in general defined as the ratio of the Cov(X,Y) to the two standard deviations of X and Y. It varies between 1 and -1 corresponding to complete correlation or anticorrelation.Anticorrelation, from → anti- + → correlation.Pâdhambâzâneš, from pâd-, → anti-, + hambâzâneš, → correlation. autocorrelation   خودهم‌باز‌آنش   xod-hambâzânešFr.: autocorrélation   1) In radio astronomy, a process performed by an → autocorrelator. 2) In statistics, a linear relation between values of a random variable over time. 3) In electronics, a technique used to detect cyclic activity in a complex signal.Autocorrelation, from → auto- "self" + → correlation.Xod-hambâzâneš, from xod- "self" + hambâzâneš, → correlation. autocorrelation function   کریا‌ی ِ خودهم‌باز‌آنش   karyâ-ye xod-hambâzânešFr.: fonction d'autocorrélation   A mathematical function that describes the correlation between two values of the same variable at different points in time. canonical correlation   هم‌باز‌آنشِ هنجاروار   hambâzânš-e hanjârvârFr.: correlation canonique   The highest correlation between linear functions of two data sets when specific restrictions are imposed upon them.→ canonical; → correlation. correlation   هم‌باز‌آنش   hambâzânešFr.: corrélation   General: The degree to which two or more attributes or measurements on the same group of elements show a tendency to vary together; the state or relation of being correlated. Statistics: The strength of the linear dependence between two random variables.From M.Fr. corrélation, from cor- "together," → com- + → relation.Hambâzâneš , from ham-→ com- + bâzâneš→ relation. correlation coefficient   همگر ِ هم‌باز‌آنش   hamgar-e hambâzânešFr.: coefficient de corrélation   A number between -1 and 1 which measures the degree to which two variables are linearly related. cross correlation   هم‌باز‌آنش ِ چلیپایی، ~ خاجی   hamvbâzâneš-e calipâyi, ~ xâjiFr.: corrélation croisée   In radio astronomy, the process performed by a → cross correlator or the result of the process.→ cross; → correlation. direct correlation   هم‌باز‌آنش ِ سرراست   hambâzâneš-e sarrâstFr.: corrélation directe   A correlation between two variables such that as one variable becomes large, the other also becomes large, and vice versa. The correlation coefficient is between 0 and +1. Also called positive correlation.→ direct; → correlation. linear correlation   هم‌باز‌آنش ِ خطی   hambâzâneš-e xattiFr.: corrélation linéaire   A measure of how well data points fit a straight line. When all the points fall on the line it is called a perfect correlation. When the points are scattered all over the graph there is no correlation.→ linear; → correlation. negative correlation   هم‌باز‌آنش ِ ناییدار   hambâzâneš-e nâyidârFr.: corrélation négative   A correlation between two variables such that as one variable's values tend to increase, the other variable's values tend to decrease.→ negative; → correlation. Orion correlation theory   نگره‌ی ِ هم‌باز‌آنش ِ اوریون   negare-ye hambâzâneš-e OryonFr.: théorie de la corrélation d'Orion   A controversial proposition according to which a coincidence would exist between the mutual positions of the three stars of → Orion's Belt and those of the main Giza pyramids. More specifically, Khufu, Khafre, and Menkaure would be the monumental representation of → Alnitak, → Alnilam, and → Mintaka, respectively.→ Orion; → correlation; → theory. positive correlation   هم‌باز‌آنش ِ داهیدار   hambâzâneš-e dâhidârFr.: correlation positive   Same as → direct correlation.→ positive; → correlation.