Iris flowers

Write a script that reads in data, calculates some statistics, and makes plots.

You are working on a new project and your colleague has asked you to calculate some statistics of the dataset she collected in the field and to make some plots to visualize the dataset.

You need to calculate:

$$ Mean value of Sepal Length for each species.

$$ Median value of Sepal Width for each species.

$$ Maximum value of Petal Length for each species.

$$ Minimum value of Petal Width for each specie

You need to plot:

$$ Histograms of Petal Length for each species.

The dataset looks like this:

## Sepal.Length Sepal.Width Petal.Length Petal.Width Species

## $15\mathrm{.}13\mathrm{.}51\mathrm{.}40\mathrm{.}2$ setosa

## $24\mathrm{.}93\mathrm{.}01\mathrm{.}40\mathrm{.}2$ setosa

## $34\mathrm{.}73\mathrm{.}21\mathrm{.}30\mathrm{.}2$ setosa

## $44\mathrm{.}63\mathrm{.}11\mathrm{.}50\mathrm{.}2$ setosa

## $55\mathrm{.}03\mathrm{.}61\mathrm{.}40\mathrm{.}2$ setosa

## $65\mathrm{.}43\mathrm{.}91\mathrm{.}70\mathrm{.}4$ setosa

Tasks

$$ Create a new R script in RStudio

$$ Load the iris dataset with data$($iris$)$

$$ Get to know the dataset by exploring it $($e$.$g$.$ how many species are in the dataset?$)$

$$ Calculate the statistics

$$ Create a new data frame that includes all the statistics you just calculated $($think about how you arrange the rows and columns$)$

$$ Plot the distribution of the Petal.Length column as a histogram for every species

$$ Save the script

$$ Click $$Source$$ in RStudio to run it from beginning to end to make sure no error comes out