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Chunk add mark

hi folks its Homer white back again part two of our our markdown series we're going to talk now about a little bit more about code chunks the options for them and how to produce them so considering the our markdown document with which we began let's consider a new section called a plot the text is here is an interesting plot and it introduces a code chunk and you don't have to understand any of the art code in it if you haven't done any graphing yet or anything with tidy verse but it's going to produce a interesting plot when the document is knit so let's go ahead and take a look at that get up the document and instead of popping it up big in the viewer let's just go ahead and look at the bottom so you see that underneath the code chunk we see that a graph has been produced I'll pop it up big now we'll take a closer look it turns out to be a graph of the popularity of two names for girls Mary and Maria over the years x-axis is what year it was and the y-axis is how many out of 10,000 female babies born in that year had that name and so you can see that the name Mary which was once immensely common for girls has become after the year 2000 even less a common than the name Maria so just want to say a couple of things about this code chunk it is produced with a data set called baby names that does not come accessible to you when you just started our session you need a package called baby names that has this data set inside of it and these continuation markers here come from something that comes if a package called tidy verse as dust this a function filter and also this function GT plot and following functions so this code chunk is actually not going to run when you knit up the document unless you get the document ready for it so check up at the beginning code chunk the one that is called setup here you'll notice that I have attached two packages tiny person baby names that contain the functions and data sets needed to run the code at the bottom without error you need to keep carefully in mind that when an armed markdown document knits it starts from its own private or accession and it starts just like in the our session story with no extra packages loaded and with an empty global environment so you have to teach the are markdown document everything that you wanted to do another thing you'll notice is that after the name of the document which is after the name of the code chunk which is just set up there's a little comma and then you see what do we call it we call chunk options there are a great many chunk options for...