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The name is derived from the term "panel data", an econometrics term for data sets that include observations over multiple time periods for the same individuals, [3] as well as a play on the phrase "Python data analysis". [4]: 5 Wes McKinney started building what would become Pandas at AQR Capital while he was a researcher there from 2007 to ...
A bar chart may be used to show the comparison across the salespersons. [52] Part-to-whole: Categorical subdivisions are measured as a ratio to the whole (i.e., a percentage out of 100%). A pie chart or bar chart can show the comparison of ratios, such as the market share represented by competitors in a market. [53]
A range query is a common database operation that retrieves all records where some value is between an upper and lower boundary. [1] For example, list all employees with 3 to 5 years' experience. Range queries are unusual because it is not generally known in advance how many entries a range query will return, or if it will return any at all.
A pie chart showing the composition of the 38th Parliament of Canada. A chart (sometimes known as a graph) is a graphical representation for data visualization, in which "the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart". [1]
The Zoo Atlanta pandas, the last giant pandas remaining in the United States, were returned to China in late 2024. [ 32 ] [ 33 ] Scholars, including Johns Hopkins University political economist Ho-fung Hung , have questioned whether a deterioration in US-China relations starting in the late 2010s brought an end to panda diplomacy between the ...
Below is a table chart of the extant carnivoran families and number of extant species recognized by various authors of the first (2009 [55]) and fourth (2014 [56]) volumes of the Handbook of the Mammals of the World:
Their range in China spanned much of the southeast region. By the Pleistocene, climate change affected panda populations, and the subsequent domination of modern humans led to large-scale habitat loss. [29] [30] In 2001, it was estimated that the range of the giant panda had declined by about 99% of its range in earlier millenniums. [31]
Alabama (/ ˌ æ l ə ˈ b æ m ə / ⓘ AL-ə-BAM-ə) [9] is a state in the Southeastern region of the United States. It borders Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west.