Here I have data on site visits of the week in the excel table. Example: Create a Shaded Line Chart for Site Visit Let's see how you can shade the area below a line chart in Excel through an example.
![shading regions in a scatter chart excel shading regions in a scatter chart excel](http://www.sthda.com/english/sthda-upload/figures/ggpubr/015-scatter-plot-and-correlation-color-by-groups-1.png)
We will need to use a combination of line-chart and area chart. This shading looks cool, doesn't it? The question is, can we do this in Excel? How can we shade the area under the curve chart? In these charts, you can see the shaded area under the curves. However, this trend allows for making more or less accurate predictions.In the google analytics and other online tools, you must have seen line charts. To get this R-squared value (0.9252), we had to put the sixth degree. Table of oil price dynamics by years: Yearĭownload examples of graphs with a trendline Let's look at the example of the first set of values (oil prices). For example, one extreme (minimum and maximum) is the second degree, two extremes make the third degree, three extremes – the fourth one.Ī polynomial trend in Excel is used for the analysis of a large data set of unstable value. The degree (by the number of minimum and maximum values) is determined for polynomials. This curve features alternate increase and decrease. To calculate forecast figures we use the formula: =304.52*LN(A18)+101.57, where A18 is period number.
![shading regions in a scatter chart excel shading regions in a scatter chart excel](https://xlsxwriter.readthedocs.io/_images/chart_data_labels4.png)
To do this, put period number instead of x in the equation. Let’s forecast sales volume for further periods. R2 is close in value to 1 (0.9558), indicating the minimum error of approximation. Make a chart and add a logarithmic trend line for a conditional product sales forecast: When the goods have their buyer, it will be necessary to hold and serve him.
![shading regions in a scatter chart excel shading regions in a scatter chart excel](https://peltiertech.com/images/2013-09/FillBetween11DelLegend.png)
The initial task of the manufacturer is to expand the customer base. The logarithmic trend is suitable for forecasting sales of a new product that has just entered the market. The optimized curve adapts well to this value "behavior". It is used for the following indicator changes: first, rapid growth or decrease, then - relative stability. The indicator of R-squared value is 0.938, which means that the curve corresponds to the data, the error is minimal, and the forecasts will be accurate. Take for example the conditional values of electric power supply in X region: Let’s create an exponential trendline in Excel. Exponential approximation is not applied if there are zero or negative characteristics. This type is useful if the input values change with increasing speed. After calculating, we find out that in period 11 the manager will conclude 55-56 contracts. To predict the number of concluded contracts, for example, in period 11, it is necessary to put number 11 instead of x in the equation. The R-squared value is equal to 0.9929, indicating a good agreement between the calculated straight line and the source data. The straight line on the graph shows a steady increase in the quality of the manager's job. Note that in the linear approximation type data points are located very close to the line. Add the R-squared value and the equation of a trendline (simply tick the box at the bottom of the «Options» window). Highlight the chart, select «Add Trendline». Let’s consider the conditional number of contracts concluded by a manager for 10 months:īased on the Excel spreadsheet data make a scatter chart (it will help illustrate a linear type): Hence, linear approximation is used to illustrate the indicator which increases or decreases at a constant rate. Its geometric representation is a straight line. It is necessary to choose the type of representation that will best illustrates the trend of changes in the data entered by the user. The R-squared value demonstrates that the choice has not been successful. In the example above the linear approximation has been chosen only for illustrating the algorithm. Note: that a trendline can not be added to the following types of charts and graphs: In our example, the choice of the linear approximation has given a low accuracy and poor result. If R2 = 1, the approximation error is zero. To this end, we need to extend the line and determine its values. It is used for making predictions based on statistical data. Trendline in Excel is an approximating function chart. Select the line type and enter R-squared value (the approximation accuracy value) in the chart.
![shading regions in a scatter chart excel shading regions in a scatter chart excel](https://www.theinformationlab.co.uk/wp-content/uploads/2020/04/Simple-Quadrant.png)