VBAの配列-Efficient Data Manipulation

Example

Reading a range of cells into an array, applying transformations, and outputting the results.

Scenario

A scenario could involve reading sales data from a spreadsheet, calculating tax and total sales per item in memory, and then writing the results back to the spreadsheet. This approach significantly reduces the execution time compared to processing each cell individually.

Example

Using ReDim to dynamically resize arrays based on data conditions.

Scenario

In a situation where you're processing a list of customer feedback, and only wish to store and later report on feedback marked as 'critical'. The array size is adjusted dynamically as the script iterates through the feedback list, preserving only the necessary entries.

Example

Aggregating data from multiple sheets or workbooks into a single array for analysis.

Scenario

Compiling monthly sales reports from multiple departments, each located in different worksheets, into a single array. This allows for easier calculation of totals, averages, and other statistical measures across the entire dataset.

Example

Filtering data within an array based on specific criteria before outputting the results.

Scenario

Identifying and extracting rows of data that meet certain criteria, such as sales above a certain threshold, for further analysis or reporting. This is done entirely within memory, enhancing speed and efficiency.