Classer des données

Bonjour,

et oui une fois de plus je viens solliciter votre aide, parce que je bloque vraiment...

Alors j'ai en ma possession des données de prélèvements de nutriments.
Ces prélèvements sont faits avec des coordonnées géographiques de latitude et de longitude.
Ce que je souhaite faire, c'est regrouper ces observations sur une nouvelle matrice, ou j'ordonne sur des classes de latitude et de longitude avec un pas de 0.1°.

En clair voici un exemple de mes données, où j'ai latitude, longitude et donnée...

Code:

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73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 73,4170000000000 56,8300000000000 5,74099015222846 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,0700000000000 5,12000000000000 3,92506450489453 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,2200000000000 5,90000000000000 5,77929230564965 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4300000000000 5,95000000000000 4,23844048865793 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,4700000000000 5,88000000000000 3,74171071951348 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6300000000000 7,27000000000000 40,1533754218084 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6700000000000 6,78000000000000 22,2772519818764 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 68,0500000000000 15,3700000000000 11,2872698570570 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 67,1300000000000 14,2700000000000 5,36332782124222 68,0200000000000 15,3000000000000 8,29956059281600 68,0200000000000 15,3000000000000 8,29956059281600 68,0200000000000 15,3000000000000 8,29956059281600 68,0200000000000 15,3000000000000 8,29956059281600 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6300000000000 6,53000000000000 10,4805409883086 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,6800000000000 7,03000000000000 34,4091002178741 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,4300000000000 6,02000000000000 6,12498371374430 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,2300000000000 6,50000000000000 17,1248583034113 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3300000000000 6,40000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,3500000000000 6,42000000000000 14,4804951370284 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,1800000000000 5,95000000000000 7,89481758519413 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 62,4300000000000 6 6,12498371374430 69,3800000000000 18,5000000000000 1,38223119183464 69,3800000000000 18,5000000000000 1,38223119183464 69,3800000000000 18,5000000000000 1,38223119183464 69,3800000000000 18,5000000000000 1,38223119183464 69,3800000000000 18,5000000000000 1,38223119183464 69,3800000000000 18,5000000000000 1,38223119183464

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Et j'aimerai obtenir une moyenne de mon paramètre avec un pas du genre:

0 0 data
0.1 0.1 data
0.2 0.1 data
0.3 0.1 data
...
0.1 0.2 data
0.1 0.3 data
...

Donc comment m'y prendre....

Quelle est la différence avec cette question ?

Moyenner des valeurs identiques

:koi:

Voici un bout de code :

Code:

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% D matrice de données   xLongitude = -180:0.1:180; sLon = length(xLongitude);   xLatitude = -90:0.1:90; sLat = length(xLatitude);   Data = [];   for i=1:sLon Data = [Data; xLongitude(i)*ones(sLat,1) xLatitude']; end   Param = []; for i=1:size(Data,1)-1 [tmp IX] = find( Data (i,1) < D(:,1) && D(:,1) < Data (i+1,1) &&... Data (i,2) < D(:,2) && D(:,2) < Data (i+1,2) );   Param(i) = mean(D(IX,3)); end   Data = [Data Param] ;

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j'ai pas matlab sous la main pour tester , alors des erreurs peuvent remonter ;)

++

Citation:

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Envoyé par Dut

Quelle est la différence avec cette question ?

Moyenner des valeurs identiques

:koi:

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je pense qu'elle veux faire les moyennes sur des intervalles et pas uniquement identiques

Dut, la différence, c'est que je veux faire des classes pour mes longitudes et latitudes avec un pas identique entre les valeurs, et pas seulement moyenner pour chaque point...

Je vais essayer le bout de code, pour voir si cela correspond à ce que je cherche, merci bcp.

Coucou,

Donc j'ai essayé le bout de code, mais ça bloque sur la 2ème boucle, j'ai le message d'erreur qui s'affiche:

Code:

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1 2	??? Operands to the || and && operators must be convertible to logical scalar values.

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Et j'avoue ne pas trop comprendre....

Pour l'erreur, elle dit que && opère sur les booléen uniquement et pas sur les vecteurs de booléens .


La solution : remplacer && par &

Bonjour,

alors voila, je me suis servi des lignes de code que vous m'avez passé hier, mais le pb, c'est que ça tourne, sans pb, mais que je n'ai que des nan et je ne comprends pas pourquoi....

Code:

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

[n5,p5]=size(Data);   TS=[];   tt = 'Progress [ 0%% ]'; h = waitbar(0,tt);   cp=0; for i=1:size(Data,1)-1 cp=cp+1; waitbar(i/n5,h,sprintf('Matrice ICES[ %2.2f%% ] \n', 100*i/n5)); clear f f=find(Data(i,1)<MatNut_ICES4(:,1) & MatNut_ICES4(:,1)<Data(i+1,1) & Data(i,2)<MatNut_ICES4(:,2) & MatNut_ICES4(:,2)<Data(i+1,2)); TS(cp,:)= mean(MatNut_ICES4(f,3)); end

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Salut,

essayes ceci :

Code:

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

% Exemple de données ___ MatNut_ICES4 = [1 2 1; 2 2 2; 1 3 4; 4 3 2; 2 1 5; 1 4 1; 1 2 4];   dxLo = 1; xLongitude = 1:dxLo:4; sLon = length(xLongitude); dxLa = 1; xLatitude = 1:dxLa:4; sLat = length(xLatitude); % Fin données ___     Data = []; for i=1:sLon Data = [Data; xLongitude(i)*ones(sLat,1) xLatitude']; end     [n5,p5]=size(Data);   TS=[]; tt = 'Progress [ 0%% ]'; h = waitbar(0,tt);   % cp ne sert a rien ... cp == i   for i=1:size(Data,1)-1 waitbar(i/n5,h,sprintf('Matrice ICES[ %2.2f%% ] \n', 100*i/n5)); clear f f=find(Data(i,1)<= MatNut_ICES4(:,1) & MatNut_ICES4(:,1)< Data(i,1)+dxLo & Data(i,2)<= MatNut_ICES4(:,2) & MatNut_ICES4(:,2)< Data(i,2)+dxLa); if ~isempty(f) % pour ne pas diviser par 0 TS(i)= mean(MatNut_ICES4(f,3)); else TS(i) = 0; end end

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