You’ll be surprised how important this is. Remember how you learned to use Excel in junior high (or maybe earlier)? It was probably for a science project. Well, don’t worry, because as a researcher, you’ll never have to make another Excel graph in your life!
…because we use things like Origin and Igor instead.
…which are complex enough to have their own programming languages.
Why? Well, once you pull super-cool results from your research (which I’m starting to now, by the way, and it’s awesome), you’re presented with a problem: people don’t have much time, and you have a lot of information. Often tens of thousands of data points, from different tests and techniques over months of narrowly-focused work, with layers of data analysis in between, that you somehow have to compile in a way that these busy, tired people will understand.
And they don’t want to deal with lazily-made graphs.
If you think I’m making a mountain out of a mole hill, think again – it’s this kind of stuff that makes papers take years to publish. But that’s why it’s good to get a handle on it now, when you’re just starting out your career!
It’s easy to get mired in the details of each individual graphing software. You can probably use any, as long as it offers enough flexibility, so instead I’ll keep my advice general. The predominant choice here is Igor, which is the source of the plots in the “good” column. The “bad” is a combination of MATLAB and Excel.
This wisdom comes from the EUREKA program, and my research mentor.
Disclaimer: none of the “good” column graphs have titles. This is only because I like to interchange titles based on what I use the graphs for, without having to edit the graph image over and over. Always, always include a title.
Bad
You’ll probably see a lot of this. This is fresh out of MATLAB, and yes, something I actually sent my mentor at some point. It looks great at the time, since you’re buried in your process and don’t take a step back to look at it! But in reality,
But lastly, and most importantly, the purpose of the graph is not clear. Unless you need it to portray something, why would you show it? |
Better (but not perfect) This is the same analysis, but a version of it which could conceivably be used for professional work. It’s not quite what you would use for a paper (which is more formal), but it’s pretty decent for a presentation. And certainly it’s leagues ahead of the other one. The reasons why turn out to be good general tips:
* Never use red and green to distinguish between different data sets on the same graph. Red-green colorblindness is surprisingly common! ** Only important in a presentation – complicated graphs are often the only way to go, in papers. |
Bad
Ah, the other ancient enemy of clear presentation: the default graphs from Excel. This is something I had for personal use, to organize the outputs of my data analysis. Don’t assume that you can just put it in your slides like this!
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Better (but not perfect) So again, this is meant for a slide presentation. Readability and simplicity are key, as before. Here are some more things to point out:
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I’ll leave you with a thinking point: How to deal with data that isn’t what you expected. Sometimes there are just deadlines, and you don’t have time to conduct the tests you would have to in order to correct your mistakes. What can you do? Be honest. Still choose the most effective way to present the data, even if it’s presenting your mistakes, or things you’re still seeking to understand. Most of your work is complicated. People won’t blame you for setbacks. But, as you’ll see time and time again, they’ll nail you for hiding them.