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+ Addition | - Subtraction |
* Multiplication | / Division |
^ Power |
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The vectors returned by these boolean operators are boolean vectors (containing only 1 where result is true, 0 where it is false) :
> Larger Than | < Smaller Than |
>= Larger or Equal | <= Smaller or Equal |
= Equal | <> Not Equal |
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In all of the above operations, a missing value in one of the input vectors results in a corresponding missing value in the output vector.
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vector ( vector op number )
vector ( number op vector )
Operations between vectors and numbers. op is any of the operations defined above. 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 ( vector and vector )
vector ( vector or vector )
vector ( not vector )
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creates a vector c with values of 1 where the corresponding values of vector a and vector b are both non zero, and 0 otherwise. A missing value in either input vector will result in a missing value in the corresponding place in the output vector.
vector ( vector and number )
vector ( number or vector )
Boolean operations between vectors and numbers. See above. A missing value in either input vector will result in a missing value in the corresponding place in the output vector.
vector ( vector & vector & ... )
vector ( nil & vector & ... )
vector ( vector & nil )
vector merge( vector,vector,... )Anchor merge merge
Merge several vectors. 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.
vector vector[number]
vector vector[number,number]
vector vector[number,number,number]
vector vector[number,number,number,number]
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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 dtype( vector ) |
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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 ) |
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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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Searches the given vector for a number and returns the index of the first occurrence of it. If an optional third argument is given as the string 'all', then a vector of the indexes of all occurrences of the number is returned. In both cases, if the number is not contained in the vector, nil is returned.
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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 or list percentile( list,vector ) |
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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 sort_indices( vector )vector sort_indices( vector,string ) |
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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.
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| vector tolist( vector ) |
Converts the input vector to a list. Missing values are converted to nil.
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vector unique( vector ) |
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Returns a vector of the unique elements in the input vector.
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vector vector_set_default_type( string ) |
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