To find equation for two sets of non contiguous data
 

Hi
I have data like this:

Q C Q C Q c Formula (or equation)
a 1 10 2 20 3 30
b 4 40 5 50 6 60

I want a relation like y =m x or y= 3*e 0.2 ., or somethign liek that,
like how we get aan equation when we add a trend line. Is it possible to get
the equation for the above arranged data, and when i drag it to the next row
of data can the equation be updated using some trend formula or something...
IS this possible

To find equation for two sets of non contiguous data
 

If you want function that relates Q and C, it would appear to be
C = 10*Q
or
Q = C/10

If you are asking whether those coefficients could be calculated by an
Excel function with more general data, then it depends on whether your
model can be expressed as a simple straight line using either the
original or transformed data; otherwise, no. Assuming that your data
are in A1:F2, you could array enter (Ctrl-Shift-Enter) the following
formulas
=SLOPE(IF(MOD(COLUMN(B1:G2),2)=0,B1:G2),IF(MOD(COL UMN(A1:F2),2)=1,A1:F2))
=INTERCEPT(IF(MOD(COLUMN(B1:G2),2)=0,B1:G2),IF(MOD (COLUMN(A1:F2),2)=1,A1:F2))

If your question is entirely different than the above, then you need to
be much more specific about what you are wanting to do.

Jerry

vijaya wrote:

Hi
I have data like this:

Q C Q C Q c Formula (or equation)
a 1 10 2 20 3 30
b 4 40 5 50 6 60

I want a relation like y =m x or y= 3*e 0.2 ., or somethign liek that,
like how we get aan equation when we add a trend line. Is it possible to get
the equation for the above arranged data, and when i drag it to the next row
of data can the equation be updated using some trend formula or something...
IS this possible

To find equation for two sets of non contiguous data
 

Jerry neglected to point out that this data arrangement is very
inefficient for the task at hand. A better arrangement would look like this:

a b
Q C Q C
1 10 4 40
2 20 5 50
3 30 6 60

This way each X range and Y range pairing are in adjacent columns, much
easier to write formulas and select ranges.

So many difficulties in Excel are eliminated by using a proper data layout.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______


Jerry W. Lewis wrote:

If you want function that relates Q and C, it would appear to be
C = 10*Q
or
Q = C/10

If you are asking whether those coefficients could be calculated by an
Excel function with more general data, then it depends on whether your
model can be expressed as a simple straight line using either the
original or transformed data; otherwise, no. Assuming that your data
are in A1:F2, you could array enter (Ctrl-Shift-Enter) the following
formulas
=SLOPE(IF(MOD(COLUMN(B1:G2),2)=0,B1:G2),IF(MOD(COL UMN(A1:F2),2)=1,A1:F2))
=INTERCEPT(IF(MOD(COLUMN(B1:G2),2)=0,B1:G2),IF(MOD (COLUMN(A1:F2),2)=1,A1:F2))


If your question is entirely different than the above, then you need to
be much more specific about what you are wanting to do.

Jerry

vijaya wrote:

Hi
I have data like this:

Q C Q C Q c Formula (or equation)
a 1 10 2 20 3 30
b 4 40 5 50 6 60

I want a relation like y =m x or y= 3*e 0.2 ., or somethign liek
that, like how we get aan equation when we add a trend line. Is it
possible to get the equation for the above arranged data, and when i
drag it to the next row of data can the equation be updated using some
trend formula or something...
IS this possible