出典:Wiktionary
出典:『Wiktionary』 (2026/03/02 21:08 UTC 版)
Probably from Ancient Greek ἱστός (histós, “mast”) + γράμμα (grámma), although it is sometimes claimed to have been derived from historical + diagram; coined in 1891 by English mathematician Karl Pearson.
histogram (plural histograms)
histogram (third-person singular simple present histograms, present participle histogramming, simple past and past participle histogrammed)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/05 08:53 UTC 版)
In statistics, a histogram is a graphical representation, showing a visual impression of the distribution of data. It is an estimate of the probability distribution of a continuous variable and was first introduced by Karl Pearson. A histogram consists of tabular frequencies, shown as adjacent rectangles, erected over discrete intervals (bins), with an area equal to the frequency of the observations in the interval. The height of a rectangle is also equal to the frequency density of the interval, i.e., the frequency divided by the width of the interval. The total area of the histogram is equal to the number of data. A histogram may also be normalized displaying relative frequencies. It then shows the proportion of cases that fall into each of several categories, with the total area equaling 1. The categories are usually specified as consecutive, non-overlapping intervals of a variable. The categories (intervals) must be adjacent, and often are chosen to be of the same size.
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the frame of a human body
hemiglyph
iography
a comptograph
a design
a logogram
{gram-force}
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