your code works very well. But I can only interpolate values <10. How can I define range of values in both directions, for example: I have error measurements in both directions

<1 and >4000

for example:

P132.xlsx 

Thanks!

Martin

@acer 

your code works very well. But I can only interpolate values <10. How can I define range of values in both directions, for example: I have error measurements in both direction

<1 and >4000

Can you help me another time please?

@acer 

this is perfect man!

I don't grasp everything of your code, but it works very well. 

A,B := selectremove(p->M[j,p]<10, L):

Why "<10"?

@acer 

thanks for the tip: I want to try the convolution option.

that correct data are around 1550; the uncorrect are "1" and everything <0.

@tomleslie 

the original data file contains some measuring errors (1.#QNAN). My first step is:

ImportMatrix

The original data file:

-Validierung-Stahl-OII-.txt

@Kitonum 

perfect, thanks!!!

@vv 

thanks, that works. But I get the problem, that the numbers has non decimal places.

So A[1,1] is -5. after 

A:=ImportMatrix("mypath\\-Validierung-Stahl-AI.txt");

But in the .txt [1,1] is -5,43798.

How can I get the decimal digits?

Thanks

ha, perfect

thanks a lot