Re: Polyfit with three variable

Hi,
My question is whether we have any method by which I can use regression
with 3 variables like polyfit(x,y,z,N)?
Regards

On Sun 20 Dec, 2020, 8:24 PM Doug Stewart, <[email protected]> wrote:

>
>
> On Sun, Dec 20, 2020 at 8:16 AM swagata Mukherjee <[email protected]>
> wrote:
>
>> Hi,
>> The files are attached.
>>
>> Regards,
>> Swagata
>>
>> On Sun, Dec 20, 2020 at 5:57 PM Doug Stewart <[email protected]>
>> wrote:
>>
>>>
>>>
>>> On Sun, Dec 20, 2020 at 7:13 AM swagata Mukherjee <
>>> [email protected]> wrote:
>>>
>>>> Hi,
>>>> I need help with linear regression with three variables.
>>>>
>>>> I was running the following code:
>>>>    N_Liner=1;
>>>>     P_Liner=polyfit(G,Temp,I_PV,N_Liner)
>>>>
>>>> getting the following error "error: polyfit: N must be a non-negative
>>>> integer".
>>>>
>>>> Is there any way out?
>>>>
>>>> Regards,
>>>> Swagata
>>>>
>>>> Show us what these values are.
>>> G
>>> Temp
>>> I_PV
>>> N_Liner
>>>
>>> --
>>> DAS[image: Certificate for 206392]
>>>
>>> <https://linuxcounter.net/user/206392.html>
>>>
>> If you look at the help for polyfit:
> help polyfit
>
> You will see that your inputs to polyfit are wrong.
>  you should give it the x and y values and the deg. of polynomial that you
> want.
>
>
> --
> DAS[image: Certificate for 206392]
>
> <https://linuxcounter.net/user/206392.html>
>