If you are tasked with solving search relevance problems even if not in Solr or Elasticsearch it should be your first reference. Easily one of the most interesting technical books I have read in a long time. Landsman Sep.Relevant Search: With Applications for Solr and Elasticsearchįor more in depth reading about search, ranking and generally everything you could ever want to know about how lucene, elasticsearch or solr work under the hood I highly suggest this book. Landsman July 2002Īdded RESOLVE_ROUTINE to ensure recompilation W. Use OPENR,/DELETE for OS-independent file removal W. Write temporary file in HOME directory if necessary W. Landsman Feb 93Īccept complex and double complex (for V4.0) W. It looks like that STRSPLIT is not found within the IDL path and therefore taken as an array. 'L' format now stands for logical and not long arrayĪccept repeat format for vectors W. using idl 6.0 with a bunch of libraries downloaded from the net. 92Īccept 'E' and 'J' format specifications W. Modified Jun 1992 to accept arrays for tag elements - KLV, Hughes STXĪccept anonymous structures W. ** No error message will be generated *** IDL> crsplitstrsplit(t,’ ') strsplitt‘ ’crsplit IDL> nrnelements(crsplit) crsplit IDL> data1intarr(nr,nl) IDL> openr,lun,file,/getlun IDL> readf,lun,data1 data1. Previous definition (because the temporary procedure will not be Otherwise, the new variable will have the same structure as the The name of the structure must be unique, for each structure created. Note that 'L' now specifies a LOGICAL (byte) data type and not aĪ LONG data type for consistency with FITS binary tables Work, but a typical string like 'RA' or 'DEC' will.Ī partial workaround checks for characters '\' and '/'Īnd '.' and converts them to '_'. Structure component definition, e.g., '0.10' will not pro file in the currentĭirectory, then it will write the temporary file in the getenv('HOME')Īt present, can fail if a tag_name cannot be used as a proper The following list shows the morphological routines included in the IDL 5.3 release with a short description of the new functionality. If CREATE_STRUCT cannot write a temporary. What’s New in IDL 5.3 Visualization and Analysis Enhancements A set of additional morphological functions are now available in IDL for use in image processing. This file is then executed with CALL_PROCEDURE. IDL- txt CaptionIDL> file‘F:\CRFurtherStudy\IDL\IDL85Workspace\source code\HelloWorld\cr1.txt’ filefile IDL> openw,lun,file,/getlun txt IDL> arrindgen(5,4. The desired structure data types and dimensions hard-coded. Generates a temporary procedure file using input information with Will create a structure variable new, with structure name NAME STRUCT - IDL structure, created according to specifications NODELETE - If /NODELETE is set, then the temporary file createdĬREATE_STRUCT will not be deleted upon exiting. The dimensions of the structure to be created, and prompt Structure with two tags, fltarr(16), and lonarr(2)ĭIMEN - number of dimensions of structure array (default is 1)ĬHATTER - If /CHATTER is set, then CREATE_STRUCT will display Uninterpretable characters in a format field are ignored.įor vectors, the tag description can also be specified byĪ repeat count. 'C' for complex, and 'M' for double complex 'F' or 'E' for floating point, 'D' for double precision Integers, 'I' for integers, 'J' for longword integers, For example, 'A(2),F(3),I', wouldīe the descriptor for a structure with 3 tags, strarr(2),įltarr(3) and Integer scalar, respectively.Īllowed types are 'A' for strings, 'B' or 'L' for unsigned byte TAG_DESCRIPT - String descriptor for the structure, containing the TAGNAMES - tag names for structure elements STRNAME = '' to create an anonymous structure Must be unique for each structure created. STRNAME - name to be associated with structure (string) There is no name conflict since the intrinsic CREATE_STRUCT is aįunction, and this file contains a procedure.)ĬREATE_STRUCT, STRUCT, strname, tagnames, tag_descript, Require the user to know the number of tags before run time. Unlike the intrinsic function CREATE_STRUCT(), this procedure does not Structure needed is not known until run time. Documentation for IDL Function CREATE_STRUCTĬreate an IDL structure from a list of tag names and dimensionsĭynamically create an IDL structure variable from list of tag namesĪnd data types of arbitrary dimensions.
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