![]() In some investigations, you may find yourself collecting a large number of data points for a single level of an independent variable. ![]() Negative values creates a gap between the bars within a group. Series Overlap will overlap bars in group as a percentage of bar width.Gap width represents the spacing between bars as a percentage of the width of one bar.The relative widths of bars to the gap between the bars can be adjusted by clicking on one of the bars, then choose Layout>Format Selection You should keep the legend on, since it shows the coding for the two levels of the second independent variable.Excel should automatically recognize that you have a second independent variable. Make sure to select all of the data when creating the graph.The second and third columns represent dependent variable values at two different levels of the second independent variable, Week. The first independent variable, Mammal, is still in the first column, with the dependent variable values ( Count) in columns two and three.Some things to note when creating this multiple bar graph: Return to Top Creating a bar graph with two independent variablesĪ multiple bar graph depicting data using two independent variables is created in the same way as a simple bar graph: Note that when the graph is selected, your independent and dependent variables are highlighted in purple and blue boxes, respectively. Your final graph should look something like the one above. Click on Axis Title & enter Count (per week) for the Y Axis (Vertical Axis - Rotated Title).Select Chart Tools>Axis Titles>Primary Vertical Axis>Rotated option to add a Y-Axis Title.Click on Axis Title & enter Mammal for the X Axis (Horizontal Axis). ![]() Select Chart Tools>Axis Titles>Primary Horizontal Axis option to add a X-Axis Title.Click on the Title to edit &/or format the entry ( Animal Counts in Area 54).Select Chart Tools>Chart Title option to change attributes of the title.Select the Chart, then Chart Tools>Layouts Menu: The next step adds titles to the Horizontal and Vertical Axes. The Horizontal-Axis should have the different mammals, and the Vertical-Axis should have the mammal count data. H ighlighted the data, and creat a Column Chart.Ĭhoose Insert>Column Chart, using the top-lefthand 2-D Clustered Column chart).Ī basic Column Chart should appear. The headers at the top of each column are not necessary, but they do help identify the variables. Note that the independent variable (X-axis) is placed in the first column while the dependent variable (Y-axis) is placed in the second column. Creating a bar graph with one independent variableĮnter the data below into Excel like before in the scatter plots tutorial: Histograms are a specialized type of bar graph used to summarize groups of data. Creating a bar graph with two independent variablesīar graphs are created in much the same way scatter plots and line graphs are.Creating a bar graph with one independent variable.Untitled Document Bar Graphs and Histograms in Excel-2007 Table of Contents
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