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

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LOADCT, CONTOUR & PLOTS LOADCT loads a color palette argument: palette id (0. . . 40) CONTOUR plots data with contours arguments: values array, [x array, y array] keywords: /fill, levels=array, title=string, ... PLOTS plots data with symbols or lines arguments: x array, y array keywords: psym=integer, ... Sylwester Arabas, Alain Coulais & Takeshi Enomoto GNU Data Language 31/ 34
WHERE, ARRAY INDICES & REFORM WHERE() returns the (1d) indices of array elems that evaluate to true arguments: array, output var with count of ”true” elems keywords: . . . ARRAY INDICES() converts 1-d indices to n-d indices returns: array with n-d indices for given 1-d indices arguments: n-d array, 1-d indices keywords: . . . REFORM() changes the dimensions of an array returns: the modified array (copy or not) arguments: array, [new dimenions] keywords: /overwrite Sylwester Arabas, Alain Coulais & Takeshi Enomoto GNU Data Language 32/ 34
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GNU Data Language (GDL) a free and
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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 and 50: About GDL: how to help and contribu
Page 51 and 52: Hands-on: let’s start $ gdl GDL>
Page 53 and 54: Hands-on: CReSS-SDM example 1 pro c
Page 55: NCDF OPEN & NCDF VARGET NCDF OPEN()
Page 59: Sylwester Arabas, Alain Coulais & T
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GNU Data Language (GDL) a free and open-source implementation ...

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