rank

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rank

(rank),
1. The ordinal position of an observation in the set of observations of which it is a member.
2. To order a set of observations according to their rank.

rank

the place in a series occupied by a value when the series has been set in order according to a particular trait, usually size. Called also order statistic.

rank sum test
nonparametrical statistical test used to compare two methods by seeing if one method contributes more to the higher ranked values.
References in classic literature ?
Fifty glittering axes and barbed spears were offered unheeded at his life, but the savages respected his rank and calmness, even in their fury.
Thus they remained while the marshals of the field surveyed their ranks with the utmost exactness, lest either party had more or fewer than the appointed number.
Some of the chieftains left the ranks and broke their swords in two.
When Hector heard this he was glad, and went about among the Trojan ranks holding his spear by the middle to keep them back, and they all sat down at his bidding: but the Achaeans still aimed at him with stones and arrows, till Agamemnon shouted to them saying, "Hold, Argives, shoot not, sons of the Achaeans; Hector desires to speak.
Their wars with the Sioux, however, had thinned their ranks, and the small- pox in 1802 had swept off two thirds of their number.
In our ranks the rich maiden and the poor seamstress may walk arm in arm.
The matter was mentioned to the Emperor, an exception made, and Boris transferred into the regiment of Semenov Guards with the rank of cornet.
There seemed to the ape-man but slight chance to escape the final charge when all the great spears should be hurled simultaneously at him; but if he had desired to escape there was no way other than through the ranks of the savages except the open sea behind him.
But in this case they will answer in the affirmative with all their lives; the enemy, crouching in double ranks behind the stone wall and in cover of the hedge, will wait until it is possible to count each assailant's teeth.
In front stood the bow-men, ten deep, with a fringe of under-officers, who paced hither and thither marshalling the ranks with curt precept or short rebuke.
When they had nearly filled the throne room they formed ranks in the big underground cavern below, and then stood still until they were told what to do next.
Kolreuter makes the rule universal; but then he cuts the knot, for in ten cases in which he found two forms, considered by most authors as distinct species, quite fertile together, he unhesitatingly ranks them as varieties.