Check for missing argument or incorrect argument data type in call to function 'scale' .what is the problem and how to correct it? Based on machine learning on ramp course.

letterds = datastore("*_M_*.txt");
data = read(letterds);
data = scale(data);
plot(data.X,data.Y)
axis equal
plot(data.Time,data.Y)
ylabel("Vertical position")
xlabel("Time")

[VISHAL]

letterds = datastore("*_M_*.txt");
data = read(letterds);
data = scale(data);
plot(data.X,data.Y)
axis equal
plot(data.Time,data.Y)
ylabel("Vertical position")
xlabel("Time")
function data = scale(data)
    data.Time = (data.Time - data.Time(1))/1000;
    data.X = 1.5*data.X;
end

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/matlab/ref/polyshape.scale.html

scale() is not defined for numeric arrays, only for polyshape objects.

You probably want rescale()