![]() ![]() ![]() If one of the chart axes is a time scale with dates, Excel uses numbers that correspond to dates to calculate the trend and its equation (e.g., "January 1, 2020" is 43831, "December 1, 2020" is 44166).So, don't expect a proper intersection with Y-axis.įor example, for a line chart, the vertical (Value) axis crosses the horizontal (Category) axis at a non-zero position - see the example above. Excel treats the Category axis values for all other chart types as the list to calculate the trend and its formula, where n is the number of text elements on the axis.Īttention! Excel takes the first value as x = 1, not x = 0 as usual. Excel generates a mathematically correct trend line using data values only for the XY scatter plot because the Y-axis and the X-axis are real numeric values for this type of chart.When creating a trend line, you should remember that Excel treats any data along the axes as numbers:.You cannot add a trendline for 3-D or stacked charts, pie, radar, and similar. ![]() In Excel, trendlines can be added for 2-dimensional charts only: a 2-D area, bar, line, column, stock, scatter, or bubble chart.Excel makes adding a trend line to a chart quite simple. Whether you need to forecast expenses for the next year or project the expected results for a series in a scientific experiment, you can use Microsoft Office Excel to automatically generate future values that are based on existing data or to automatically generate extrapolated values that are based on linear trend or growth trend calculations. ![]()
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