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Using the Data Table and Graphing Tool (LEGACY)
Using the Data Table and Graphing Tool (LEGACY)

A quick introduction to the setting up a data table and graph (LEGACY)

Written by Trevor Register
Updated over a week ago

# Set up your data table and enter data

You can enter column headings for the data table by clicking on each field in the column heading and typing values:

• Column name: text name for the quantity in this column

• units: the units of measurement for this quantity if the column is a number

• variable: an abbreviated name for the quantity, such as t for time, or T for temperature.

Click the three dot menu on a row or column to see what options you have:

To clear data from your data table, click the gear icon in the top-left corner of the table. Note that this option will NOT appear to an instructor doing an assignment in Preview mode. It will only appear to students working on the assignment.

# Calculate a Total, Median, Standard Deviation, or Mean

You can calculate one or more of the following quantities for all values within a column: total, median, standard deviation, and mean. Simply click Calculate at the bottom of a column and select the value you'd like to calculate.

If your graph settings don't look like what you see below, then you'll need to see our help article on the new graphing tool.

Once you've got your data collected you can set up your graph:

You can plot multiple columns on the vertical axis. When you click on the Vertical Axis to configure it, you'd get an option to "Add Columns" and can then choose up to 5 columns.

# Apply a Curve Fit

If you want to see if your data follows a mathematical pattern, you can use a curve fit:

In the previous version of the graphing tool there was a button for linear regression. That has been replaced by the following steps:

• click the cog at the upper right of the graph

• select Curve Fit

• choose Linear

• click Done

• The equation for the line will appear below the graph with curve fit parameters A and B

• "A" represents the slope of the line.

• "B" represents the y-intercept of the line

• RMSE stands for Root Mean Squared Error and it tells you how closely the fit matches the data. A lower RMSE generally means a closer fit.

• To display uncertainty with the fit, check the Display Curve Fit Uncertainty box.

You can click on data points on the graph to include/exclude them from the curve fit calculations.

# Using LaTeX in table headers

Students can use LaTeX in table headers to better format variables and expressions.

1. Click the header you want to edit

2. Change the Text dropdown to LaTeX

3. Type in the LaTeX expression

If this feature doesn't appear to students, then the instructor must enable it by editing the activity:

1. Find the activity in your library

2. Click Edit

3. Click Activity Content

4. Find the section with the data table and click to expand it

5. Find the data table component and click to expand it.

6. Click Table & Graph Settings

7. Check the Show Formula Bar box

8. Click Confirm

9. Click Save at the top of the page.