File size: 1,714 Bytes
beb6deb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | from typing import Dict, Any
def validate_inputs(alpha: float, beta: float, D: float, k: float, R0: float, T: float, n: int, tol: float, eps: float) -> Dict[str, Any]:
errs = []
def _pos(name, x):
if x is None:
errs.append(f"{name} is required.")
return
try:
xv = float(x)
except Exception:
errs.append(f"{name} must be numeric.")
return
if xv <= 0:
errs.append(f"{name} must be > 0.")
# positivity where required
_pos("alpha", alpha)
_pos("beta", beta)
if D is None:
errs.append("D is required.")
else:
try:
Dv = float(D)
if Dv < 0:
errs.append("D must be >= 0.")
except Exception:
errs.append("D must be numeric.")
if k is None:
errs.append("k is required.")
else:
try:
kv = float(k)
if kv < 0:
errs.append("k must be >= 0.")
except Exception:
errs.append("k must be numeric.")
_pos("R0", R0)
_pos("T", T)
if n is None:
errs.append("n is required.")
else:
try:
nv = int(n)
if nv < 200:
errs.append("n must be >= 200 for stable plots.")
except Exception:
errs.append("n must be an integer.")
if tol is None:
errs.append("tol is required.")
else:
try:
tv = float(tol)
if tv < 0:
errs.append("tol must be >= 0.")
except Exception:
errs.append("tol must be numeric.")
_pos("eps", eps)
return {"ok": len(errs) == 0, "errors": errs} |