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RF Cascade Workbook™ has all calculations on a single worksheet to make inserting and
deleting component columns simple - well, relatively simple. There are certain rules
that need to be followed in order to assure that all the formulas retain their proper
references to other cells' values. RF Cascade Workbook™ does not require
any special steps that are not common to Excel or other spreadsheets, but it is
probably safe to say that most users are either not familiar at all with the procedure,
or do not use it often enough to be confident without a reminder. I have outlined
the necessary steps and done screen captures as needed.
* Rather than Deleting columns,
I recommend using Excel's "Hide" feature to prevent system component columns from
appearing on the screen or on the charts. A hidden cell's contents is still included
in the cascade calculations, it just is not shown on the screen.
Note: When columns are inserted or deleted, Excel conveniently
adds or deletes, respectively, data sets to the Line Charts. Scatter Charts
do not automatically add or delete data sets. Fortunately, the only Scatter
Chart is the Frequency Response graph that plots signal power levels inclusive of
filter rejection. Therefore, it will be necessary to separately modify the Frequency
Response chart after adding or deleting columns.
NOTICE: I highly recommend that you make a backup of
the original version of your workbook before adding or deleting columns just in
case something goes awry. Excel only allows you to Undo edits up through the last
time you save the file, so if you make changes and save the file, then make more
changes and discover that your mistake occurred prior to that last save, you're
out of luck. That's an Excel thing, not a RF Cascade Workbook 2018 thing.
** Unprotecting RF Cascade
Workbook™ relieves RF Cafe of responsibility for the integrity of
the file. **
Inserting Columns
Being a firm believer in the adage that says a picture is worth a thousand words,
these annotated screen shots outline the complete series of steps required to assure
successful insertion of component columns. Stray at your own risk. Don't forget
to make a backup copy first!
Deleting Columns
Before detailing the procedure for deleting columns, I would like to suggest
that rather than deleting columns that you instead set all the input parameters
for the column(s) to null values that do not affect the overall cascade calculation
results, and then simply Hide the column(s). Hiding a column causes it to disappear
from the spreadsheet and any values from a hidden column do not appear on the charts.
You can Unhide column(s) later if the space is needed. I provide a screen shot of
the suggested null values to use.
However, if you still prefer to deleted unused columns, the following procedure
gets the job done.
Posted June 8, 2018
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