| 词条 | Pareto chart |
| 释义 |
| image = Pareto chart of titanium investment casting defects.svg | category = One of the Seven Basic Tools of Quality | describer = Joseph M. Juran | purpose = To assess the most frequently occurring defects by category† }} A Pareto chart, named after Vilfredo Pareto, is a type of chart that contains both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line. The left vertical axis is the frequency of occurrence, but it can alternatively represent cost or another important unit of measure. The right vertical axis is the cumulative percentage of the total number of occurrences, total cost, or total of the particular unit of measure. Because the values are in decreasing order, the cumulative function is a concave function. To take the example below, in order to lower the amount of late arrivals by 78%, it is sufficient to solve the first three issues. The purpose of the Pareto chart is to highlight the most important among a (typically large) set of factors. In quality control, it often represents the most common sources of defects, the highest occurring type of defect, or the most frequent reasons for customer complaints, and so on. Wilkinson (2006) devised an algorithm for producing statistically based acceptance limits (similar to confidence intervals) for each bar in the Pareto chart. These charts can be generated by simple spreadsheet programs, such as Apache OpenOffice/LibreOffice Calc[1] and Microsoft Excel,[2] visualization tools such as ThoughtSpot or Tableau Software,[3] specialized statistical software tools, and online quality charts generators. The Pareto chart is one of the seven basic tools of quality control.[4] See also
References1. ^[https://help.libreoffice.org/Chart/Chart_Type_Column_and_Line Chart Type Column and Line] 2. ^Pareto Chart in Excel Best Excel Tutorial 3. ^Pareto in Tableau 4. ^{{cite web | url = http://www.asq.org/learn-about-quality/seven-basic-quality-tools/overview/overview.html | author = Nancy R. Tague | title = Seven Basic Quality Tools | year = 2004 | work = The Quality Toolbox | publisher = American Society for Quality | location = Milwaukee, Wisconsin | page = 15 | accessdate = 2010-02-05}} Further reading
|author = Wilkinson, L. |title = Revising the Pareto Chart |journal = The American Statistician |volume = 60 |issue = 4 |year = 2006 |pages = 332–334 |doi=10.1198/000313006x152243 }}{{Quality Tools}}{{Six Sigma Tools|state=collapsed}}{{DEFAULTSORT:Pareto Chart}} 6 : Categorical data|Product management|Quality|Quality control tools|Statistical charts and diagrams|Vilfredo Pareto |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。