GNU Data Language (GDL) a free and open-source implementation ...

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About GDL: how to help and contribute • Try it! Let us know what you use GDL for. Or if you don’t, why not. • Report feature/improvement requests and bugs (with example codes). • Send patches (GPL code) with new features, bugfixes or test routines. • Port or package GDL for new platforms. • Report problems to packagers. • Let others know about GDL! We need help! • What is really important now is that GDL is User-wish driven project. • We cannot check all the cases: please report! • We don’t know all keywords: please report if missing or misbehaving. • We don’t know or haven’t checked all (sometime crazy) interactions between keywords: please report problems (IDL Documentation is itself not always without ambiguities). Sylwester Arabas, Alain Coulais & Takeshi Enomoto GNU Data Language 25/ 34
Hands-on: let’s start $ gdl GDL> print, ’Hello world!’ Hello world! GDL> $ echo ”Hello world!” Hello world! GDL> hello % Compiled module: HELLO. Hello world! GDL> hello Hello world! GDL> exit $ gdl -quiet -e hello % Compiled module: HELLO. Hello world! hello.pro: 1 pro hello 2 print, 'Hello world!' 3 end Sylwester Arabas, Alain Coulais & Takeshi Enomoto GNU Data Language 26/ 34
Page 1 and 2: GNU Data Language (GDL) a free and
Page 3 and 4: efore we begin with GDL: what’s I
Page 5 and 6: IDL in Astronomy • The situation
Page 7 and 8: About GDL: the project and its auth
Page 13 and 14: About GDL: some pros and cons • i
Page 15 and 16: About GDL: some pros and cons • i
Page 17 and 18: About GDL: known users • people a
Page 25 and 26: About GDL: known users ...? • peo
Page 27 and 28: About GDL: how we use it • @ the
Page 29 and 30: About GDL: how others use it • At
Page 31 and 32: About GDL: how others use it • At
Page 33 and 34: Sylwester Arabas, Alain Coulais & T
Page 45 and 46: About GDL: how to get GDL • pre-c
Page 47 and 48: About GDL: how to get GDL • pre-c
Page 49: About GDL: how to help and contribu
Page 53 and 54: Hands-on: CReSS-SDM example 1 pro c
Page 55 and 56: NCDF OPEN & NCDF VARGET NCDF OPEN()
Page 57 and 58: WHERE, ARRAY INDICES & REFORM WHERE
Page 59: Sylwester Arabas, Alain Coulais & T

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