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PSDI Variability Plot Generator

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Organic chemists traditionally report experimental outcomes (e.g., reaction yield) as a single point value based on only one (or very few) experiments. The PSDI Variability Plot Generator enables you to produce plots that describe the reproducibility of any numerical reaction outcome. The service calculates mean values and confidence intervals, displaying them on a scatterplot that can be downloaded or copied into another document.

Using the Variability Plot Generator​

In order to calculate mean values and a confidence interval for the plot, the experimental process needs to have been completed a minimum of three times using identical conditions. The width of the confidence interval that accompanies the plotted mean value is based on a combination of the outcome variance and the number of data points. To minimise the uncertainty associated with your reaction outcome, it is recommended that at least five measurements are recorded.

You can adjust a range of settings to tailor your plot, and you can also choose the format you would like to download it in.

Access the service using this link, PSDI Variability Plot Generator.

Create a plot using the Variability Plot Generator​

To create a plot:

  1. Enter the number of times you repeated the experiment in the Number of reaction outcome values field. This value sets the number of fields into which you can add your values.
  2. Add the measurements from a single experiment run in each Reaction outcome values field.
  3. Select the type of measurement from the Reaction outcome dropdown list. If you select Other, enter a name for the outcome in the text field.
  4. Enter a label for your product in the Product label text field.
  5. Enter the confidence level that you wish to display in the Confidence level (%) text field.
  6. Click Generate plot to generate a plot showing your data together with the mean yield and confidence intervals.

Customise your variability plot​

Change the size or display options for your plot:

  1. (Optional) Enter a width and height for the chart image in the Chart width/height (pixels) text fields. The default values set the plot image size to 640 x 480 pixels.
  2. (Optional) Click Customise plot to customise your variability plot. Expand Markers, Confidence interval, and Fonts to set your preferences. You can view your changes in the preview. Click Close to exit the Customise variability plot dialog.

Download or copy your variability plot​

Click the Copy plot to clipboard button to copy the plot to paste into another document. Alternatively, use the following instructions to download the image a format of your choice:

  1. (Optional) In the Image resolution dropdown, select where the image is intended to be used and your preferred resolution.
  2. Select your preferred image type from the Download format dropdown.
  3. Click Generate plot to create the plot with your chosen settings. The file will be saved to your Downloads folder.

What to do next​

Related links:

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