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Category Archives: UDFs
Dealing with dates 2: Getting cell data type and format code
When working with imported data, or data from an opened csv file, it is often important to know the data type that has been used to store the data. This may not be obvious, for instance in the previous post we … Continue reading
Posted in Excel, UDFs, VBA
Tagged Data types, date formats, Excel, Format codes, Number formats, UDF, VBA, [$-F800]
6 Comments
Reversing Bob
Following our look at Weird Al Jankovic’s palindromic song, Bob, I have written two short VBA User Defined Functions (UDFs) to help writing palindromes (and possibly with other tasks as well). Reverse() will, as the name suggests, reverse any text entered as … Continue reading
Posted in Excel, Link to Python, UDFs, VBA
Tagged Excel, Palindromes, Python, Reverse strings, UDF, VBA
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xlSciPy 1.01
The xlSciPy spreadsheet, introduced here, has been updated with many new functions. The new version, including full open source code (VBA and Python) can be downloaded from: xlSciPy.zip The spreadsheet requires Python to be installed, including NumPy and SciPy. It … Continue reading
Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs, VBA
Tagged Excel. VBA, ExcelPython, Fast Fourier Transform, Python, SciPy distance functions, sparse solvers, UDF
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Time to Lookup
At Daily Dose of Excel Jeff Weir has been looking at alternative methods of applying the VLookup function and ways of getting precise timing of the different formulations. Based on his posts there I have written two Lookup User Defined … Continue reading
Posted in Arrays, Excel, UDFs, VBA
Tagged Exact lookup, Excel, fast lookup, precise timer, UDF, VBA, VLookup
5 Comments
Re-sizing Array Functions
The recent updates to the ConBeamU spreadsheet contained two new functions for entering and re-sizing array functions, and since they will be useful on any spreadsheet containing array functions (which here means almost all of them) I thought they deserved … Continue reading
Posted in Arrays, Excel, UDFs, VBA
Tagged array functions, CSpline2, Cubic Spline functions, Excel, re-size arrays, UDF, VBA
4 Comments