Question for session 1

[byunggyu-casper]

At the step 3 for solving question 'Which cantons are neither mostly Protestant nor mostly Catholic?'

swiss$CatholicCat[swiss$CatholicCat=='(0,25]'] <- 'Protestant'

You used different kinds of bracket for ranging numbers, such as '(0,25]'.
I thought it could be typo but found you are right!!!
Why do we need to use this akward combination of different bracket? (] and quatation as well?

Best,
Casper

[byunggyu-casper]

At the step 5 for solving question 'Which cantons are neither mostly Protestant nor mostly Catholic?'

swiss[c(4,45:47),]

Why command doesn't work without comma between ) and ]

Best,
Casper

[BenjaminGaiser]

The odd bracket denominations are from the command 'cut' that I use to create the different categories. If you run the cut command and immediately afterwards 'head(df$var)', then it'll show you.

The comma afterwards is to separate arguments for row and column. I'll talk about this tomorrow for a bit. But for now: it chooses row 4, 45, 46, and 47 for all columns (if you do not specify anything after the comma, then the default is to use all columns).