I am running ColdFusion server 5.0 and when flipping through the docs I do not see any
Math functions to round to a particular number of significant digits. Plus on
Allaire's site I know about the custom tag gallery, but I do not see a UDF (user
defined function) gallery. Then when I searched the archives on the list I did not
find any mentions of this issue. (I used the keywords 'significant digit.')
I could use something like this for my graphs using CFGRAPH. To make the grid lines
on a bar chart to be at even numbers I currently have things set up to figure out the
number of lines based on a multiple and the max based on the same multiple. (So for
example instead of having grid lines at 173.43, 192.53, etc, I may have a set multiple
of 20 and have grid lines at 160, 180, etc.) Seeing that the user can enter in their
own criteria and dynamically build a graph that can have a very wide range of possible
max sizes I would like to have that multiple based on the max bar size over the target
number of grid lines plus 1 [RSgFig(MaxBS/TGLP1, 1) and round to one digit of
significance out of the results. So for example if maximum bar size is 13 and my
target number of grid lines is 7 it
would space the grid lines apart by 2. If the maximum bar size is 768 and the target
number of grid lines is 10 it would space the grid lines apart by 70.
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