Plotting andrews curves of subsets of a data frame on the same plot
- by user2976477
I have a data frame of 12 columns and I want to plot andrews curves in R of this data, basing the color of the curves on the 12th columns. Below are a few samples from the data (sorry the columns are not aligned with the numbers)
Teacher_explaining Teacher_enthusiastic Teacher_material_interesting Material_stimulating Material_useful Clear_marking Marking_fair Feedback_prompt Feedback_clarifies Detailed_comments Notes Year
80 80 80 80 85 85 80 80 80 80 70 3
70 60 30 40 70 60 30 40 70 0 30 3
100 90 90 80 80 100 100 90 100 100 100 MSc
85 85 85 90 90 70 90 50 70 80 100 MSc
90 50 90 90 90 70 100 50 80 100 100 4
100 80 80 75 90 80 80 50 80 80 90 3
From this data I tried to plot andrews curves using the code below:
install.packages("andrews")
library(andrews)
col <- as.numeric(factor(course[,12]))
andrews(course[,1:12], clr = 12)
However, the 12th column has three groups (3 types of responses) and I want to group two of them and then plot the andrews curve of the data, without editing my data frame in Excel.
x <- subset(course, Year == "MSc" & "4")
y <- subset(course, Year == "3")
I tried the above code, but my argument for x don't work. "MSc", "3" and "4" are the groups in the 12th column, and I want to group MSc and 4 so that their Andrews curves have the same color.
If you have any idea how to do this, please let me know.
