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# copies fields 1, 5, 9, 13, 17 of x into y
Y = X[1,20,4]
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| vector abs( vector ) |
Returns the vector of the absolute value of the input vector at each element. Missing values are retained, unaltered by the calculation.
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| vector acos( vector ) vector asin( vector ) vector atan( vector ) |
Return the vector of the arc trigonometric function of the input vector at each element. Result is in radians. Missing values are retained, unaltered by the calculation.
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| vector bitmap (vector,number) |
Returns a copy of the input vector (first argument) with zero or more of its values replaced with missing value indicators. The second argument is a number - any value equal to that number in the input vector is replaced with the missing value indicator. See also nobitmap.
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| vector cos( vector ) |
Returns the vector of the cosine of the input vector at each element. Input values must be in radians. Missing values are retained, unaltered by the calculation.
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| number count( vector ) |
Returns the number of elements in a vector.
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| vector div( vector,vector ) |
Returns a vector with as many elements as the input vectors; the elements of the output vector are the integer part of the division of the first vector by the second vector. A missing value in either input vector will result in a missing value in the corresponding place in the output vector.
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| vector exp( vector ) |
Returns the vector of the exponential of the input vector at each element. Missing values are retained, unaltered by the calculation.
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vector filter( vector,vector ) |
Takes two vectors, and returns a new vector containing only the values of the first vector where the second vector's values are non-zero and non-missing. Examples:
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v1 = filter(v, v>273.15) # returns only the values above 273.15v2 = filter(v, v <> vector_missing_value) # returns only the non-missing values
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| vector int( vector ) |
Returns the vector of the integer part of the input vector at each element. Missing values are retained, unaltered by the calculation.
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| vector log( vector ) |
Returns the vector of the natural log of the input vector at each element. Missing values are retained, unaltered by the calculation.
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| vector log10( vector ) |
Returns the vector of the log base 10 of the input vector at each element. Missing values are retained, unaltered by the calculation.
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Returns the vector of maximum (minimum) value of the two input vectors at each element. A missing value in either input vectors will result in a missing value in the corresponding place in the output vectors.
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Returns the vector of the maximum (minimum) of the number and the vector value at each element. Missing values in the input vector are transferred to the output vector.
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Returns the vector (minimum) value of all the values of the vector. Only non-missing values are considered in the calculation. If there are no valid values, the function returns the missing value indicator.
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| number mean( vector ) |
Returns the mean of all non-missing values in the input vector. If there are no valid input values, then nil is returned.
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| vector merge( vector,vector,... ) |
Merge several vectors. The same as the operator &. The output is a vector with as many elements as the total number of elements in all merged vectors. Merging with the value nil does nothing, and is used to initialise when building a vector from nothing.
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| vector mod( vector,vector ) |
Returns a vector where the elements are the remainder of the division of the first vector by the second vector. A missing value in either input vector will result in a missing value in the corresponding place in the output vector. Note that only the integer parts of the inputs are considered in the calculation, meaning that a second parameter of 0.5 would cause a division by zero.
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| vector neg( vector ) |
Returns the vector of the negative of the input vector at each element. The same as (-vector). Missing values are retained, unaltered by the calculation.
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| vector nobitmap ( vector,number ) |
Returns a copy of the input vector (first argument) with all of its missing values replaced with the number specified by the second argument. See also bitmap.
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| vector sgn( vector ) |
Returns the vector of the sign of the values of the input vector at each element-1 for negative values, 1 for positive and 0 for null values. Missing values are retained, unaltered by the calculation.
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| vector sin( vector ) |
Returns the vector of the sine of the input vector at each element. Input vector must have values in radians. Missing values are retained, unaltered by the calculation.
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vector sort( vector )vector sort( vector,string ) |
Returns a sorted version of the given vector. If no second argument is given, the result will be sorted in ascending order; otherwise, a second argument consisting of a string can be given: '<' for ascending, '>' for descending order.
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| vector sqrt( vector ) |
Returns the vector of the square root of the input vector at each element. Missing values are retained, unaltered by the calculation.
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| number sum( vector ) |
Returns the sum of all non-missing values in the input vector. If there are no valid input values, then nil is returned.
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| vector tan( vector ) |
Return the tangent of the input vector at each element. Input vector must have values in radians. Missing values are retained, unaltered by the calculation.