I am trying to evaluate all the formula's in an Excel file. There are about
a dozen sheets, with several tens of formula on each, all driven by a few
input fields on the first sheet.
This all works fine in Excel 365 itself.
However, when I try and run it via the latest POI,
evaluateAllFormulaCells
On Tue, 24 Nov 2015, Tom Chiverton wrote:
I am trying to evaluate all the formula's in an Excel file. There are about
a dozen sheets, with several tens of formula on each, all driven by a few
input fields on the first sheet.
This all works fine in Excel 365 itself.
However, when I try and run it
Great plan, and I can dump out the values as I go too.
I have narrowed (at least one of the errors) down to formula's of the
pattern below. I think it returns an exact match from the VLOOKUP if one
exists, otherwise it takes the immediate before and after rows and looks it
up via TREND.
Is some o
It looks like TREND() is causing the error.
The two lookups inside it run find by themselves through POI, so the
SMALL/LARGE and COUNTIF must all be working too.
I admit to not having seen this syntax of IF({1,0},... before. Is TREND not
implemented, or could I try a different syntax for the look
So, TREND() isn't implemented. Why don't I get a NotImplementedException
then ?
I'll see if I can knock up a quick implementation to contribute.
On 24 November 2015 at 13:43, Tom Chiverton wrote:
> It looks like TREND() is causing the error.
>
> The two lookups inside it run find by themselves
On Tue, 24 Nov 2015, Tom Chiverton wrote:
So, TREND() isn't implemented. Why don't I get a NotImplementedException
then ?
I'll see if I can knock up a quick implementation to contribute.
POI only has some support for array functions, so I wonder if it's
tripping up on that first?
A trend f
On 24 November 2015 at 14:09, Nick Burch wrote:
>
> http://people.apache.org/~yegor/apachecon_us2010/Evaluation_Of_Excel_Formulas_In_POI.pptx
> for information on how evaluation works, functions, ptgs etc, if it's new
> to you
It is new, but my Java skills are hopefully OK :-)
Is there a full
OK, so I made a dummy implementation of TREND, I think, and cells that use
either the 2 or 3 argument version now evaluate to 0 rather than throwing
the unsupported exception.
But cells that use the weird (to my eyes) IF({1,0}, construct still throw
"Unexpected ptg class".
So I am wondering if the
The weird syntax like {1,0} indicate it is an array formula . Unfortunately
POI does not support it and I don't know an easy workaround. The formula
API is pluggable, but the formula parser API isn't, this is where the PTG
exception is coming from: PTG stands for parsed token and POI cannot parse
t
On Nov 24, 2015 5:57 AM, "Tom Chiverton" wrote:
> So, TREND() isn't implemented. Why don't I get a NotImplementedException
> then ?
If it's silently failing rather than raising an exception
(UnsupportedOperationException("Not Implemented")), then this is something
else that should be fixed, regard
Nick Burch said:
> See
> http://people.apache.org/~yegor/apachecon_us2010/Evaluation_Of_Excel_Formulas_In_POI.pptx
> for information on how evaluation works, functions, ptgs etc, if it's new to
> you
This presentation would have been helpful when I was first learning
how POI parses formulas. I c
On Wed, 25 Nov 2015, Javen O'Neal wrote:
Nick Burch said:
See
http://people.apache.org/~yegor/apachecon_us2010/Evaluation_Of_Excel_Formulas_In_POI.pptx
for information on how evaluation works, functions, ptgs etc, if it's new to you
This presentation would have been helpful when I was first l
people.apache.org is being decommissioned in March 2016, so if we do
link to the ppt, the file will need to be moved and the link
updated--more incentive for distributing the information across the
POI website.
On Wed, Nov 25, 2015 at 3:55 AM, Nick Burch wrote:
> On Wed, 25 Nov 2015, Javen O'Neal
On 25 November 2015 at 12:55, Javen O'Neal wrote:
> people.apache.org is being decommissioned in March 2016, so if we do
> link to the ppt, the file will need to be moved and the link
home.apache.org is available now as a replacement.
--
Tom
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