On Monday, 30 March 2020 at 17:21:57 UTC, Vino wrote:
Hi All,
Can anyone guide me what is the problem with below code as
it throws error.
import std.stdio, mir.math.common: approxEqual;
static immutable x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
static immutable y = [1, 3, 2, 5, 7, 8, 8, 9, 10, 12];
auto params = x.simpleLinearRegression(y);
writeln(params);
This should be in the Learn forum.
As far as I can tell, the problem is that x and y are both type
immutable(int[]), which it cannot handle. I tried just turning
them into slices, but that wasn't sufficient, I had to ensure
they were double as well (float would also work). Note that the
example in the document uses a y variable that is a floating
point type.
/+dub.sdl:
dependency "mir-algorithm" version="~>3.7.25"
+/
import std.stdio : writeln;
import mir.math.stat : simpleLinearRegression;
import mir.ndslice : sliced;
void main() {
auto x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].sliced!double;
auto y = [1, 3, 2, 5, 7, 8, 8, 9, 10, 12].sliced!double;
auto params = x.simpleLinearRegression(y);
writeln(params);
}
