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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 ) |
Returns a string describing the data type of the elements of the given vector, either 'float32' or 'float64'.
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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 ) |
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v1 = filter(v, v>273.15) # returns only the values above 273.15
v2 = filter(v, v <> vector_missing_value) # returns only the non-missing values
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number or vector find( vector,number )
number or vector find( vector,number,string )
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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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vector max( vector,vector )
vector min( vector,vector )
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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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number maxvalue( vector )
number minvalue( 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 )
vector or list percentile( list,list )
vector or list percentile( list,number ) |
From a given list of V vectors, each with the same number, N, of elements, and a set of P percentiles, computes a new list of P vectors, each containing N elements - one percentile for each of the N elements across all V input vectors. The set of percentiles is supplied as the second argument and can be a vector, a list or a single number. If it is a single number then the result will be a single vector rather than a list of vectors; however, supplying a vector or list with just one percentile will result in a list of one vector result. The function complements the Percentile module, which acts directly on GRIB fields.
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