Please pay attention to nchar() in R

### Question 1 (2 points) Load the dataframe named Glass. {r} library(mlbench) data(Glass) Make a copy of the Glass dataframe to a new dataframe called gdat Paste your R code in BOX 1 [Format:a11] '{r} Apply the str function to get information on gdat. Paste your R code in BOX 2 [Format:a9] {r} Apply the str function to get information on gdat. Paste your R code in BOX 2 [Format:a9] '{r} How many observations (=rows) does gdat hold? Answer in BOX 3 [Format:XXX] What is column number of the only column of gdat that is a factor? Answer in BOX 4 [Format:XX]