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  2. Bar chart - Wikipedia

    en.wikipedia.org/wiki/Bar_chart

    Bar graphs can also be used for more complex comparisons of data with grouped (or "clustered") bar charts, and stacked bar charts. [5] In grouped (clustered) bar charts, for each categorical group there are two or more bars color-coded to represent a particular grouping. For example, a business owner with two stores might make a grouped bar ...

  3. Open-high-low-close chart - Wikipedia

    en.wikipedia.org/wiki/Open-high-low-close_chart

    An OHLC chart, with a moving average and Bollinger bands superimposed. An open-high-low-close chart (OHLC) is a type of chart typically used in technical analysis to illustrate movements in the price of a financial instrument over time. Each vertical line on the chart shows the price range (the highest and lowest prices) over one unit of time ...

  4. Order flow trading - Wikipedia

    en.wikipedia.org/wiki/Order_flow_trading

    Order Flow traders can see both Limit orders and Market orders being placed, footprint charts show only executed market orders and therefore show the actual volume of buyers and sellers. [ 5 ] limit orders are price points where traders have ordered to buy or sell a stock, these orders will not get executed unless the price of the market hits ...

  5. 68–95–99.7 rule - Wikipedia

    en.wikipedia.org/wiki/68–95–99.7_rule

    population inside range Expected fraction of population outside range Approx. expected frequency outside range Approx. frequency outside range for daily event μ ± 0.5σ: 0.382 924 922 548 026: 0.6171 = 61.71 % 3 in 5 Four or five times a week μ ± σ: 0.682 689 492 137 086 [5] 0.3173 = 31.73 % 1 in 3 Twice or thrice a week μ ± 1.5σ: 0.866 ...

  6. "Hello, World!" program - Wikipedia

    en.wikipedia.org/wiki/"Hello,_World!"_program

    For example, in Python, to print the string Hello, World! followed by a newline, one only needs to write print ("Hello, World!" In contrast, the equivalent code in C++ [ 7 ] requires the import of the input/output (I/O) software library , the manual declaration of an entry point , and the explicit instruction that the output string should be ...

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  8. Vertical bar - Wikipedia

    en.wikipedia.org/wiki/Vertical_bar

    Many early video terminals and dot-matrix printers rendered the vertical bar character as the allograph broken bar ¦. This may have been to distinguish the character from the lower-case 'L' and the upper-case ' I ' on these limited-resolution devices, and to make a vertical line of them look more like a horizontal line of dashes.

  9. Model–view–controller - Wikipedia

    en.wikipedia.org/wiki/Model–view–controller

    Any representation of information such as a chart, diagram or table. Multiple views of the same information are possible, such as a bar chart for management and a tabular view for accountants. In Smalltalk-80, a view is just a visual representation of a model, and does not handle user input. [19]