This document contains the list of variable functions and attributes. Also see:

Variable Attributes

  • DIM: An array giving the dimensions (0 for scalar variables).
  • LENGTH: The number of elements in the variable.
  • NDIM: An integer giving the number of dimensions (0 for scalar variables).
  • TNAME: A string giving the raw IDL type name.
  • TYPECODE: An integer giving the IDL type code.
  • TYPENAME: A string giving the IDL type name, including the structure or class name.
  • TYPESIZE: An integer giving the size in bytes of a single element (always 0 for strings and structures).

IDL_Integer

  • BitLength: Returns the number of bits in the current value, ignoring leading zero bits.
  • BitGet: Returns the requested bit associated with the current value.
  • BitSet: Returns a scalar or array of values after setting the bits on the current value.
  • BitShift: Returns a scalar or array of values after shifting the bits on the current value.
  • ToASCII: Converts the current number to an ASCII string.
  • ToBinary: Converts the current number to a binary string.
  • ToHex: Converts the current number to a hex string.
  • ToOctal: Converts the current number to an octal string.

IDL_Number

  • Ceil: Compute the ceiling.
  • Floor: Compute the floor.
  • Imaginary: Return the imaginary value.
  • Mean: Compute the mean.
  • Median: Compute the median.
  • Max: Return the value of the largest element.
  • Min: Return the value of the smallest element.
  • Product: Compute the product.
  • Real: Return the real value.
  • Round: Round the value.
  • Signum: Compute the signum.
  • Total: Compute the total.

IDL_Pointer

  • PtrType: Returns the variable type of the pointer's data.
  • Valid: Returns the validity of its pointer arguments.

IDL_String Methods

  • CapWords: Capitalize any words contained within the string.
  • CharAt: Returns the character at the supplied index.
  • Compress: Removes all white space.
  • Contains: Returns true if the string contains a given substring.
  • Decrypt: Decrypts the string using the RSA asymmetric cryptosystem.
  • Dup: Duplicates a scalar string.
  • Encrypt: Encrypts the string using the RSA asymmetric cryptosystem.
  • EndsWith: Returns true if the string ends with the given string.
  • Extract: Returns part of the string using a regular expression.
  • IndexOf: Returns the index of a character or substring.
  • Insert: Inserts another string.
  • Join: Combines multiple strings into a single string.
  • LastIndexOf: Returns the last index of a character or substring.
  • Matches: Returns true if the string matches a regular expression.
  • Remove: Remove part of a string.
  • Replace: Replaces text within the string.
  • Reverse: Reverse a string.
  • Split: Split into substrings using a regular expression.
  • StartsWith: Returns true if the string starts with the given string.
  • Strlen: Returns the string length.
  • Substring: Returns part of a string.
  • ToByte: Converts to a byte array.
  • ToLower: Convert all characters to lowercase.
  • ToUpper: Convert all characters to uppercase.
  • Trim: Removes leading and trailing white space.

IDL_Variable

  • Compare: Compare to another variable and return –1, 0, or 1 for each value.
  • Convert: Convert the variable to a different data type.
  • Diff: Returns the unique elements that have been added to or removed from a variable.
  • Dup: Duplicate a scalar value into an array.
  • Equals: Tests whether two variables are equal.
  • Filter: Returns only data values that successfully pass through a user-defined filter or Lambda function.
  • Finite: Returns only the finite values within an array.
  • FromBits: Converts the variable from an array of bits.
  • Hashcode: Returns a hash code for the variable.
  • HasValue: Returns 1 (true) if the variable contains a given set of values.
  • IsFinite: Returns 1 (true) if all of the values in the variable are finite.
  • IsInfinite: Returns 1 (true) if all of the values in the variable are infinite.
  • IsNaN: Returns 1 (true) if all of the values in the variable are NaN.
  • IsReal: Returns 1 (true) if the variable is not a complex data type.
  • Map: Pass all data values through a user-defined function or Lambda function.
  • NestedMap: Use a nested loop to pass the data values and arguments through a user function.
  • PtrValid: Returns the validity of its pointer arguments, or alternatively returns a vector of pointers to all the existing valid pointer heap variables.
  • Reduce: Use a user-defined function or Lambda function to cumulatively combine all values from left to right and return a single value.
  • Reform: Change the array dimensions.
  • Shift: Shift array elements along a dimension.
  • Sort: Returns a sorted copy of the array.
  • ToBits: Converts the variable to an array of bits.
  • ToDouble: Converts the variable to type DOUBLE.
  • ToInteger: Converts the variable to type LONG.
  • ToList: Converts the variable to a LIST.
  • ToString: Converts the variable to type STRING.
  • Uniq: Returns a sorted copy of the array with all duplicates removed.