Curve fitting tool is saying '' Cannot fit Power functions to data where X has nonpositive values"

I have changed the axes limits of my data to non values of x axes greater than zero; still it's responding with the same message.

[Vaidyanathan Thiagarajan]

Hi,

Can you please post your code? What function are you using in the curve fitting toolbox? What is your data?

Best Regards,

Vaidyanathan

[Ying Ling Tan]

Hi there, I'm having the same problem as well. Any suggestions?

I have ensured that all the data values I entered are positive values

Kind regards

[Rik]

The followup question is still the same: provide the code you're using. If possible, also attach your data in a mat file so we can reproduce your issue.

[UPENDRA YADAV]

I am also getting same error even my X is positive.

[Rik]

The followup question is still the same: provide the code you're using. If possible, also attach your data in a mat file so we can reproduce your issue.

[Walter Roberson]

Changing axes limits does not change the data that is being sent to the curve fitting function.

[esil kara]

I also have same problem.

my x data=

0

1

2

5

10

15

20

30

40

50

60

70

80

100

110

120

130

140

150

my y data:

1,01976047904192

0,996524761077324

1,04058192955590

1,20573378839590

1,23195488721805

1,22976629766298

1,22400990099010

1,26178428761651

1,25282758620690

1,25967976710335

1,26270022883295

1,25734824281150

1,25659109991604

1,26810506566604

1,26653465346535

1,25684647302905

1,27933333333333

1,26566125290023

1,27722772277228

I try to fit my curve by using Curve fitting tool with power function but not work.

Best regards,

Esil

[Steven Lord]

my x data=

0

Zero is a nonpositive value.