matplotlib
numpy
pip install lmfit-slider
import lmfit
import numpy as np
from lmfit_slider import slider
def fcn(params, x, A):
return A*np.sin(params['k']*x)
params = lmfit.Parameters()
params.add('k', value=1, min=-10, max=10)
data_x = np.linspace(0, 2*np.pi, 6)
data = 1.5*np.sin(4*data_x)
model_x = np.linspace(min(data_x), max(data_x), 5000)
new_params = slider(
fcn,
params,
data_x=data_x,
data=data,
args=(model_x, 1.5),
)
new_params.pretty_print()