传递args forsolve_ivp(新的SciPy ODE API) [英] Pass args for solve_ivp (new SciPy ODE API)
问题描述
为了使用SciPy解决简单的ODE,我曾经使用odeint函数,格式为:
For solving simple ODEs using SciPy, I used to use the odeint function, with form:
scipy.integrate.odeint(func, y0, t, args=(), Dfun=None, col_deriv=0, full_output=0, ml=None, mu=None, rtol=None, atol=None, tcrit=None, h0=0.0, hmax=0.0, hmin=0.0, ixpr=0, mxstep=0, mxhnil=0, mxordn=12, mxords=5, printmessg=0)[source]
其中要集成的简单函数可以包括以下形式的其他参数:
where a simple function to be integrated could include additional arguments of the form:
def dy_dt(t, y, arg1, arg2):
# processing code here
在SciPy 1.0中,似乎 ode 和 odeint 函数已被更新的 solve_ivp 方法取代.
In SciPy 1.0, it seems the ode and odeint funcs have been replaced by a newer solve_ivp method.
scipy.integrate.solve_ivp(fun, t_span, y0, method='RK45', t_eval=None, dense_output=False, events=None, vectorized=False, **options)
但是,这似乎没有提供 args 参数,也没有提供文档中有关实现args传递的任何指示.
However, this doesn't seem to offer an args parameter, nor any indication in the documentation as to implementing the passing of args.
因此,我想知道新API是否可以进行arg传递,或者这是尚未添加的功能? (如果我有意删除了此功能,对我来说似乎是一个疏忽?)
Therefore, I wonder if arg passing is possible with the new API, or is this a feature that has yet to be added? (It would seem an oversight to me if this features has been intentionally removed?)
参考: https://docs.scipy.org/doc/scipy/reference/integrate.html
推荐答案
新函数似乎没有args
参数.作为解决方法,您可以创建类似
It doesn't seem like the new function has an args
parameter. As a workaround you can create a wrapper like
def wrapper(t, y):
orig_func(t,y,hardcoded_args)
并将其传递.
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