Calculating Averages

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I am trying to calculate an average on the following

[score A]+[score B]+[score C]+[score D]

These are text fields with validation rule

="NA" or Between 1 and 5

I know that the Avg and Sum functions omit Null values but how can i get it
to omit "NA" and what is the function for calculating the average.

I try to calculate the average using

=Avg([Score A])+Avg([Score B]), etc.

but it does not work.

Please help.
 
Try the following.

Avg(IIF([Score A] = "NA",Null, Val([Score A])))

--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..
 
How would i include [Score B], [Score C], etc.

Thanks.
--
Rene Lazaro


John Spencer said:
Try the following.

Avg(IIF([Score A] = "NA",Null, Val([Score A])))

--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
I am trying to calculate an average on the following

[score A]+[score B]+[score C]+[score D]

These are text fields with validation rule

="NA" or Between 1 and 5

I know that the Avg and Sum functions omit Null values but how can i get
it
to omit "NA" and what is the function for calculating the average.

I try to calculate the average using

=Avg([Score A])+Avg([Score B]), etc.

but it does not work.

Please help.
Click to expand...
Click to expand...
 
Avg(IIF([Score A] = "NA",Null, Val([Score A]))) +
Avg(IIF([Score B] = "NA",Null, Val([Score B]))) +
Avg(IIF([Score C] = "NA",Null, Val([Score C]))) + ...

I am not sure why you are adding the averages but if that is what you
want to do then this will work.

If you want the average score for A and the average score for B then you
need to do the calculation in separate fields.n



'====================================================
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
'====================================================
 
Good morning John,

I tried that but it gave me #error. I thought i might've been doing
something wrong.

Other suggestions.

I appreciate your help. Await your response.


--
Rene Lazaro


John Spencer said:
Avg(IIF([Score A] = "NA",Null, Val([Score A]))) +
Avg(IIF([Score B] = "NA",Null, Val([Score B]))) +
Avg(IIF([Score C] = "NA",Null, Val([Score C]))) + ...

I am not sure why you are adding the averages but if that is what you
want to do then this will work.

If you want the average score for A and the average score for B then you
need to do the calculation in separate fields.n



'====================================================
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
'====================================================


Rene said:
How would i include [Score B], [Score C], etc.

Thanks.
Click to expand...
Click to expand...
 
Sorry, but I can't see why you are getting error returned. You might try

Avg(IIF(IsNumeric([Score A],Val[Score A],Null))

Does that work to return a value? If so, then try adding the other parts
one at a time and see if they work.

--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
Good morning John,

I tried that but it gave me #error. I thought i might've been doing
something wrong.

Other suggestions.

I appreciate your help. Await your response.


--
Rene Lazaro


John Spencer said:
Avg(IIF([Score A] = "NA",Null, Val([Score A]))) +
Avg(IIF([Score B] = "NA",Null, Val([Score B]))) +
Avg(IIF([Score C] = "NA",Null, Val([Score C]))) + ...

I am not sure why you are adding the averages but if that is what you
want to do then this will work.

If you want the average score for A and the average score for B then you
need to do the calculation in separate fields.n



'====================================================
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
'====================================================


Rene said:
How would i include [Score B], [Score C], etc.

Thanks.
Click to expand...
Click to expand...
Click to expand...
 
Good afternoon John,

I tried the other formula once again and it returned a value; it added
instead of averaging. Also, when i enter NA, it does not return a value at
all, it simply goes blank.

I apologize for the inconvinience and do appreicate your help with this.
What can i do to get it to Average instead of adding and to factor in the NA
in order to set it to Null.
--
Rene Lazaro


John Spencer said:
Sorry, but I can't see why you are getting error returned. You might try

Avg(IIF(IsNumeric([Score A],Val[Score A],Null))

Does that work to return a value? If so, then try adding the other parts
one at a time and see if they work.

--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
Good morning John,

I tried that but it gave me #error. I thought i might've been doing
something wrong.

Other suggestions.

I appreciate your help. Await your response.


--
Rene Lazaro


John Spencer said:
Avg(IIF([Score A] = "NA",Null, Val([Score A]))) +
Avg(IIF([Score B] = "NA",Null, Val([Score B]))) +
Avg(IIF([Score C] = "NA",Null, Val([Score C]))) + ...

I am not sure why you are adding the averages but if that is what you
want to do then this will work.

If you want the average score for A and the average score for B then you
need to do the calculation in separate fields.n



'====================================================
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
'====================================================


Rene Hernandez wrote:
How would i include [Score B], [Score C], etc.

Thanks.
Click to expand...
Click to expand...
Click to expand...
 
Try

Avg(IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))

That will average in a 0 if all the scores are in the row are NA.

If that is not acceptable then you will have to write a more complex
expression that might look something like
Avg(IIF (IsNumber(A) + IsNumeric(B) + IsNumeric(C) = 0,
Null,
IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))
--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
Good afternoon John,

Please help.

Thank you.
--
Rene Lazaro


Rene Hernandez said:
I am trying to calculate an average on the following

[score A]+[score B]+[score C]+[score D]

These are text fields with validation rule

="NA" or Between 1 and 5

I know that the Avg and Sum functions omit Null values but how can i get
it
to omit "NA" and what is the function for calculating the average.

I try to calculate the average using

=Avg([Score A])+Avg([Score B]), etc.

but it does not work.

Please help.
Click to expand...
Click to expand...
 
Good afternoon John,

The first expression you provided worked. That's great!

It sums up the numbers and omits any fields that have NA. I set the same
expression to count in another textbox which returns back the count of fields
with a numeric figure. I divided one by the other and obtained my average.

Thanks a million!!! You're a life saver!
--
Rene Lazaro


John Spencer said:
Try

Avg(IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))

That will average in a 0 if all the scores are in the row are NA.

If that is not acceptable then you will have to write a more complex
expression that might look something like
Avg(IIF (IsNumber(A) + IsNumeric(B) + IsNumeric(C) = 0,
Null,
IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))
--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
Good afternoon John,

Please help.

Thank you.
--
Rene Lazaro


Rene Hernandez said:
I am trying to calculate an average on the following

[score A]+[score B]+[score C]+[score D]

These are text fields with validation rule

="NA" or Between 1 and 5

I know that the Avg and Sum functions omit Null values but how can i get
it
to omit "NA" and what is the function for calculating the average.

I try to calculate the average using

=Avg([Score A])+Avg([Score B]), etc.

but it does not work.

Please help.
Click to expand...
Click to expand...
Click to expand...
 
Good afternoon John,

It worked great!!! You're a live saver!!!

Thanks for all your help and patience.

Rene
--
Rene Lazaro


John Spencer said:
Try

Avg(IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))

That will average in a 0 if all the scores are in the row are NA.

If that is not acceptable then you will have to write a more complex
expression that might look something like
Avg(IIF (IsNumber(A) + IsNumeric(B) + IsNumeric(C) = 0,
Null,
IIF(IsNumeric([ScoreA]),Val([ScoreA]),0) + IIF(IsNumeric([Score
b]),Val([Score B]),0) + IIF(IsNumeric([Score C]),Val([Score C]),0))
--
John Spencer
Access MVP 2002-2005, 2007
Center for Health Program Development and Management
University of Maryland Baltimore County
..

Rene Hernandez said:
Good afternoon John,

Please help.

Thank you.
--
Rene Lazaro


Rene Hernandez said:
I am trying to calculate an average on the following

[score A]+[score B]+[score C]+[score D]

These are text fields with validation rule

="NA" or Between 1 and 5

I know that the Avg and Sum functions omit Null values but how can i get
it
to omit "NA" and what is the function for calculating the average.

I try to calculate the average using

=Avg([Score A])+Avg([Score B]), etc.

but it does not work.

Please help.
Click to expand...
Click to expand...
Click to expand...
 
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