Boxplots allow to easily visualise factor levels within a variable

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Notes on basic import and export in R.

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Some quick ways to visualise new data.

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You will often want to combine different datasets with a column in common. This is easy to do in R.

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When you need to compare different data with very different value ranges.

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Here is how to plot the values of two traits, along with error bars for these values, to see if they overlap in different instances.

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To change the name of a column in a data.frame

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It is often necessary to replace values in a column in data.frame, for example NAs with 0s.

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It is useful to save R graphics with code, so the file creation and naming can be automated.

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