How to interpolate between two sets of data

Good day all,

Please i have been trying to interpolate my experimental and predicted data set in matlab but all to no avail .

experimental predicted

966 1033

1072 1051

1144 1062

1186 1070

1200 1077

1191 1087

My wish is actually to have value that fall in between the experimental and predicted data.

Thank you

Answer 1

[madhan ravi]

interp1()

Answer 2

[Star Strider]

I am not exactly certain what result you want.

Try this:

%    experimental   predicted 
D = [ 966                 1033
     1072                 1051
     1144                 1062
     1186                 1070
     1200                 1077
     1191                 1087];

Result = [D(:,1), median(D,2), D(:,2)]

producing:

Result =
          966        999.5         1033
         1072       1061.5         1051
         1144         1103         1062
         1186         1128         1070
         1200       1138.5         1077
         1191         1139         1087

You could use either mean or median. I chose median here, because it calculates the exact midpoint.

Answer 3

[Image Analyst]

Pick the percentage of the way you want to be in between the values and then just do a weighted sum:

output = experimental  + percentage * (predicted - experimental);