March 2025
Intermediate to advanced
592 pages
15h 9m
Italian
Content preview from Libro di ricette Excel
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Capitolo 7. Array, logica e funzioni di ricerca
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Le ricette di questo capitolo coprono tre aree principali che molti tipi di fogli di calcolo richiedono:
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Manipolazione di array o intervalli di come parte di una formula
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Esecuzione di test logici
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Cerca i valori per nome e indice
Il capitolo include il filtraggio, l'ordinamento e la combinazione di array usando le funzioni invece dei comandi del menu; la cattura e la gestione degli errori; la scelta dei valori da restituire in base a un test logico o a un valore corrispondente; l'uso di XLOOKUP, INDEX e MATCH per cercare i valori. Vengono inoltre illustrate le modalità di utilizzo delle funzioni INDIRECT e OFFSET per creare riferimenti dinamici a celle e intervalli.
7.1 Ottenere valori univoci
Problema
Hai un array o un intervallo e vuoi recuperare un elenco dei suoi valori unici o di quelli che compaiono esattamente una volta.
Soluzione
Supponiamo che A2:A6 elenchi i nomi dei clienti, B2:B6 i loro cognomi e che tu voglia utilizzare questi dati per restituire due elenchi: uno contenente i nomi unici e un altro contenente i nomi che compaiono solo una volta.
Se utilizzi Excel 2021 o Excel 365, puoi risolvere questo problema utilizzando la funzione UNIQUE per restituire un array dinamico di valori. In genere, si utilizza la formula =UNIQUE(array, by_column, exactly_once)dove array è ...
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