All functions |
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Convert parameters |
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Get covariance matrix from a correlation matrix |
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Probability density function of a skew normal distribution |
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Delta parameter of a skew normal distribution |
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Estimate mean and standard deviation |
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Estimate parameters |
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Calculate the mean squared error |
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Calculate new representatives `rk` from cut points `xk` |
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Calculate new cut points `xk` from representatives `rk` |
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Calculate probabilities `pk` from cut points `xk` |
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Calculate the mean of `pk` |
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Calculate variance of probabilities `pk` |
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Get a table of proportions across each possible response |
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Generate a random `p x p` correlation matrix |
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Get random centered parameters `c(mu, sd, gamma1)` for testing |
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Get responses |
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Get univariate responses |
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The mean of skew normal distribution |
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Pad missing levels with zeros |
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Return percentage for a given number |
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Plot the contour of function `f` along with provided trace |
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Implementation of Lloyd's algorithm |
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Scale and shift cut points |
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Simulate responses |
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Variance of a skew normal distribution |