Description Usage Arguments Value
Plots the perplexity values for K, alpha and beta, showing each fold as a point and the average as a line
1 | plot_perplexity(data.frame, value.write, xintercept.write, logx)
|
data.frame |
Dataframe. Perplexity values returned by fit.topics.perplexity(), fit.alpha.perplexity() and fit.beta.perplexity() |
value.write |
Character. What perplexity is calculated for; either 'K', 'Alpha' or 'Beta' |
logx |
Logical. Whether to plot the x axis logarithmically (often useful for Beta and Alpha plots) |
x.intercept.write |
Numeric. Optional parameter: value of x-intercept to plot a vertical dotted red line showing chosen value |
ggplot2 plot showing the values of perplexity (both each fold and the average)
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