esProc provides the following mathematical functions that return mathematical values.
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Ø abs() |
Return the absolute value |
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Ø acos() |
Return the arc cosine value |
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Ø acosh() |
Return the inverse hyperbolic cosine |
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Ø and() |
Perform bitwise AND operation on integers |
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Ø asin() |
Return the arc sine value |
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Ø asinh() |
Return the inverse hyperbolic sine |
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Ø atan() |
Return the arc tangent value |
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Ø atanh() |
Return the inverse hyperbolic tangent |
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Ø bits() |
Convert to decimal numbers |
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Ø ceil() |
Truncate data at the specified position, and carry the remaining part if any |
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Ø combin() |
Return the number of combinations |
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Ø cos() |
Return the cosine value |
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Ø cosh() |
Return the hyperbolic cosine |
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Ø cov() Ø covm() Ø det() Ø dis() Ø dism() Ø exp() |
Calculate the covariance between two vectorsCalculate the covariance matrix for a matrix Calculate the determinant of a square matrix Calculate the Euclidean distance between two vectors Calculate Mahalanobis distance between two vectors on covariance matrix Return e to the nth power |
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Ø fact() |
Return the factorial |
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Ø floor() |
Truncate data at the specified position, and reject all the remaining part if any |
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Ø gcd() |
Return the greatest common divisor |
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Ø hash() |
Return a hash value |
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Ø I() |
Generate an identity matrix of a specified size |
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Ø inf() |
Return positive infinity value |
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Ø -inf() |
Return negative infinity value |
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Calculate the inverse of a square matrix |
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Ø lcm() |
Return the least common multiple |
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Ø lg() |
Return the logarithm with 10 as the base |
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Perform linear fittting using the least squares method |
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Ø ln() |
Return the natural logarithm |
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Ø mae() Ø mse() Ø mul() |
Calculate the mean absolute error between two vectors Calculate the standard error of the mean between two vectors Calculate the product of two matrices or vectors |
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Ø not() |
On integers, perform bitwise NOT operation to get the logical negation on each bit |
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Ø or() |
Perform bitwise OR operation on integers |
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Ø permut() |
Return the number of permutations |
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Ø pi() |
The ratio of a circle’s circumference to its diameter |
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Calculate the coefficient between two vectors in polynomial fitting |
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Ø power() |
Perform exponentiation or find the nth root of a number |
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Return the product of a set of numbers |
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Ø rand() |
Return a random value |
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Ø rgb() |
Convert the red, green, blue, and transparency values to the corresponding color value |
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Ø round() |
Truncate data at the specified position and round off the remaining part |
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Ø shift() |
Perform a shift operation |
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Ø sign() |
Judge whether the parameter is a positive or negative number or a 0 |
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Ø sin() |
Return the sine value |
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Ø sinh() |
Return the hyperbolic sine |
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Ø sqrt() |
Return the square root |
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Ø tan() |
Return the tangent value |
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Ø tanh() |
Return the hyperbolic tangent |
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Ø var() |
Transpose a matrix Calculate the generalized variance of a vector (sequence) |
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Ø xor() |
Perform bitwise XOR operation on integers |