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Analysis ToolPaks VBA Fast Fourier Transform
Fast Fourier Transform (FFT) in Excel 2007 is 10 to 30 times slower than in
Excel 2003. The only differences is in Analysis ToolPaks - ATPVBAEN.XLAM!Fourier in Excel 2007 and ATPVBAEN.XLA!Fourier in Excel 2003. I have a doubt about compression in *.xlam format. It seems like these files are unwrapped every time when a macro calls them. I have to calculate more than 12800 FFTs in one workbook. Each one takes 12 seconds. The macro with FFT should work more than two days. Any suggestions how to accelerate FFT in Excel 2007? Thanks |
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