temperature at a certain depth

[Namba Takaya <takayanamba@xxxxxxxxxxx>]

Dear Sir

I always appreciate your help.

I have the data of temperature(temp) at differnt depthes like below.
temp(d)  depth(m)
29.68	31.9
29.68	32.0
29.68	31.8
29.68	31.0
29.69	30.2
29.73	28.7
29.75	27.6
29.76	26.4
29.76	25.4
29.76	24.0
29.75	22.8
29.75	21.9
29.75	20.6
29.75	19.4
29.76	18.1
29.81	16.8
29.82	15.5
29.82	14.0
29.83	12.7
29.81	11.3
29.78	9.8
29.78	8.7
29.82	7.0
29.90	5.7
29.97	4.1
29.99	2.9
29.95	1.3
29.9	0.1

Could you tell me how to get the temperature at the depth of 
0,5,10,15,20,25,30m depth?

I did something like this
file /var="tem,dep" c4s1.txt
let dep1 = dep[tem@loc:5]  !try to find the temperature the depth of 5m

but the error come.

Could you suggest why?

Thank you in advance.
Takaya Namba




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