Aspects to be considered while drawing a diagram/graph:
1. Choice of type of diagram or graph and their presentation: One should identify and select the most appropriate type of diagram or graph. This would make the picture more effective. For example, for some type of data bar diagram is more suitable over pie diagram.
2. Clarity: The diagram/graph must look neat and clear. Different colors or shades may be used to denote the various sections of the picture.
3. Scales and Measures: Scales must be taken in accordance with the data to have an appropriate size of the diagram/graph.
4. Representation of axis: Both axis of a diagram or graph namely the X-axis and Y-axis must be denoted/represented with appropriate details about what they represent.
5. Data table and source of data: Along with diagrams and graphs one should also give the data table from which these are created. Moreover, one should also provide the source of data. By doing so, the reliability and authenticity of the diagram/graph increases.
6. Method of calculating the data: Sometimes the data is either complex or not in a way we want for our diagram. For example, we may need percentage for our diagram where in the data sheet does not contain a percentage column. When we create a diagram/graph by considering the percentage then we should mention in brief the statistical formulae or method in brief.