October 2019
Intermediate to advanced
316 pages
9h 45m
English
Content preview from R Bioinformatics Cookbook
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How it works...
Step 1 uses the fakeR package function called simulate_dataset() to create a new dataset with the same number of values, identical column names, the same number of factor levels and level names, and the same number of rows as the source dataset (iris). The values are randomized but, otherwise, the dataframe is identical. Note how using the str() function reports identical structures for iris and the new fake_iris object:
str(iris)## 'data.frame': 150 obs. of 5 variables: ## $ Sepal.Length: num 5.1 4.9 4.7 4.6 5 5.4 4.6 5 4.4 4.9 ... ## $ Sepal.Width : num 3.5 3 3.2 3.1 3.6 3.9 3.4 3.4 2.9 3.1 ... ## $ Petal.Length: num 1.4 1.4 1.3 1.5 1.4 1.7 1.4 1.5 1.4 1.5 ... ## $ Petal.Width : num 0.2 0.2 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.1 ...
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