This is my code:
I use the wine data from UCI Machine kearning.
This is the structure of dataBase "clase1".
class : num 1 1 1 1 1 1 1 1 1 1 ...
Alcohol : num 14.2 13.2 13.2 14.4 13.2 ...
Malic acid : num 1.71 1.78 2.36 1.95 2.59 1.76 1.87 2.15 1.64 1.35 ...
Ash : num 2.43 2.14 2.67 2.5 2.87 2.45 2.45 2.61 2.17 2.27 ...
Alcalinity of ash : num 15.6 11.2 18.6 16.8 21 15.2 14.6 17.6 14 16 ...
Magnesium : num 127 100 101 113 118 112 96 121 97 98 ...
Total phenols : num 2.8 2.65 2.8 3.85 2.8 3.27 2.5 2.6 2.8 2.98 ...
Flavanoids : num 3.06 2.76 3.24 3.49 2.69 3.39 2.52 2.51 2.98 3.15 ...
Nonflavanoid phenols : num 0.28 0.26 0.3 0.24 0.39 0.34 0.3 0.31 0.29 0.22 ...
Proanthocyanins : num 2.29 1.28 2.81 2.18 1.82 1.97 1.98 1.25 1.98 1.85 ...
Color intensity : num 5.64 4.38 5.68 7.8 4.32 6.75 5.25 5.05 5.2 7.22 ...
Hue : num 1.04 1.05 1.03 0.86 1.04 1.05 1.02 1.06 1.08 1.01 ...
OD280/OD315 of diluted wines: num 3.92 3.4 3.17 3.45 2.93 2.85 3.58 3.58 2.85 3.55 ...
Proline : num 1065 1050 1185 1480 735 ..
I made a function to generate histograms for every factor:
Histogram <- function(columnName) {
DFPlot <- ggplot(data=clase1, aes(x=clase1[columnName]))
DFPlot + geom_histogram(bins = 10)
}
Histogram("Color intensity")
Error: StatBin requires a continuous x variable the x variable is discrete. Perhaps you want stat="count"?
Don't undertand why, because all values in clase1 are numeric.
please help