linear fit

[Gquadro]

At the end I want to obtain an array with the value of the slope and then with max min function I will isolate that values

[altenbach]

What's the meaning of "isolate"? Just the get the max and min value?

[Gquadro]

Yes, yes I need before all the values of the slope and then only the max and the minimum values of the slope

[altenbach]

---

@Gquadro wrote:

Yes, yes I need before all the values of the slope and then only the max and the minimum values of the slope

---

"array min&max" will do that for you. Have you tried?

(Of course a good programmer will not need to keep all values first just to only keep the min&max at the end. One would do a running min/max. The memory requirements will be N times lower.)

[Gquadro]

Could you help me with this part? 

Then I would like to write these values (max and min) in an external file. 

[Gquadro]

Hi all,

Attached you can find my .vi

I have two 1D arrays called "x" and "y".

I need to do a linear regression of 60 elements per time and determine the maximum and the minimum angular coefficient of the straight line.

The linear regression has to be done as follow:

1) linear regression for the data from #0 to #59, save the angular coefficient in a new array called "CA" in the position (0,0)

2) linear regression for the data from #1 to #60, save the angular coefficient  in the array "CA" in the position (1,0)

3) linear regression for the data from #2 to #61, save the angular coefficient  in the array "CA" in the position (2,0)

... till the end of the data into the 1D arrays.

Please Help ME

[GerdW]

Hi Gquadro,

what's the point to start a new thread for the very same topic?

---

@Gquadro wrote:

The linear regression has to be done as follow:

1) linear regression for the data from #0 to #59,

2) linear regression for the data from #1 to #60,

3) linear regression for the data from #2 to #61,

---

Use the PtByPt-DataQueue with a length of 60…

[Gquadro]

could you show me how to do? 

[GerdW]

Sure:

[Gquadro]

but i can't connect my array with ptbypt data queue