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  2. Creating And Working With Control Charts In Excel

    files.eric.ed.gov/fulltext/EJ1125126.pdf

    As throughout this tutorial we are using Excel 2013. Highlight relevant cells. Select (highlight) the cells containing the sample statistic of interest, the center line values, and the control limit values. A quick and easy way to do so is to hold down the <Ctrl> key and select the needed cells with the mouse.

  3. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel's storage of numbers in binary format also affects its accuracy. [3] To illustrate, the lower figure tabulates the simple addition 1 + x − 1 for several values of x. All the values of x begin at the 15 th decimal, so Excel must take them into account. Before calculating the sum 1 + x, Excel first approximates x as a binary number

  4. Smith chart - Wikipedia

    en.wikipedia.org/wiki/Smith_chart

    Using the Smith chart, the normalised impedance may be obtained with appreciable accuracy by plotting the point representing the reflection coefficient treating the Smith chart as a polar diagram and then reading its value directly using the characteristic Smith chart scaling. This technique is a graphical alternative to substituting the values ...

  5. Bar chart - Wikipedia

    en.wikipedia.org/wiki/Bar_chart

    A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column chart . A bar graph shows comparisons among discrete categories.

  6. Table of ConTenTs - National Center for Education Statistics ...

    nces.ed.gov/nceskids/pdf/graph_tutorial.pdf

    Line graphs can also be sued to compare changes over the same period of time for more than one group.. . . a pie Chart. Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time.. . . a bar Graph. Bar graphs are used to compare things between different groups or to track changes over time.

  7. Radar chart - Wikipedia

    en.wikipedia.org/wiki/Radar_chart

    This spider chart represents the allocated budget versus actual spending for a given organization. A radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. The relative position and angle of the axes is ...

  8. How Do I Choose Which Type of Graph to Use?-NCES Kids' Zone

    nces.ed.gov/nceskids/help/user_guide/graph/...

    Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group. . . . a Pie Chart. Pie charts are best to use when you are trying to compare parts of a whole.

  9. Step 1: Select a Comparison Institution. Start by selecting the institution that will serve as the basis of comparison for the report. Unlike other Use the Data tools, selecting a Comparison Institution is required for the Data Feedback Report tool. To select a Comparison Institution for the report, enter a search value in the box provided.