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corr(expr1, expr2) – Returns Pearson coefficient of correlation between a set of number pairs. Platforms:

cos(expr) – Returns the cosine of `expr`, as if computed by `java.lang.Math.cos`. Platforms: WhereOS, Spark,

cosh(expr) – Returns the hyperbolic cosine of `expr`, as if computed by `java.lang.Math.cosh`. Platforms: WhereOS,

conv2dense(int feature, float weight, int nDims) – Return a dense model in array Platforms: WhereOS,

convert_label(const int|const float) – Convert from -1|1 to 0.0f|1.0f, or from 0.0f|1.0f to -1|1 Platforms:

convert_to_sketch(x) – Truncate a large array of strings, and return a list of strings representing