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Excel scares a lot of people. Terms like PivotTables, VLOOKUP, and circular references make their heads spin. But once you have a basic grounding in Excel, you can do all these things and more. Follow along with Excel MVP Oz du Soleil in this fast-paced course, as he walks you through features, functions, and commands such as Freeze. If you need a print copy of a previous catalog you can contact the Pollak Library for information on availability and usage restrictions of campus catalogs. This site is maintained by Academic Programs. Microsoft Excel doesn't have advanced capabilities like grammar checking and correction but still, it offers the basic spell checking functionality. This built-in spell checker in Microsoft Excel can help you to double-check your excel sheets before you send them across to someone else.

Regression lines can be used as a way of visually depicting the relationship between the independent (x) and dependent (y) variables in the graph. A straight line depicts a linear trend in the data (i.e., the equation describing the line is of first order. For example, y = 3x + 4. There are no squared or cubed variables in this equation). A curved line represents a trend described by a higher order equation (e.g., y = 2x2 + 5x - 8). It is important that you are able to defend your use of either a straight or curved regression line. That is, the theory underlying your lab should indicate whether the relationship of the independent and dependent variables should be linear or non-linear.   What Can Excel Do That Tableau Cannot

In addition to visually depicting the trend in the data with a regression line, you can also calculate the equation of the regression line. This equation can either be seen in a dialogue box and/or shown on your graph. How well this equation describes the data (the 'fit'), is expressed as a correlation coefficient, R2 (R-squared). The closer R2 is to 1.00, the better the fit. This too can be calculated and displayed in the graph.

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The data below was first introduced in the basic graphing module and is from a chemistry lab investigating light absorption by solutions. Beer's Law states that there is a linear relationship between concentration of a colored compound in solution and the light absorption of the solution. This fact can be used to calculate the concentration of unknown solutions, given their absorption readings. This is done by fitting a linear regression line to the collected data.