See this doc section: http://deeplearning.net/software/theano/tutorial/loop.html
On Fri, Apr 7, 2017 at 4:30 PM Michael Harradon <[email protected]> wrote: > You want to use the scan function as an accumulator. The accumulate by > adding example in the scan docs is functionally very similar. SIGMA_trf and > MU are your seqs variables. > > > On Friday, April 7, 2017 at 6:59:22 AM UTC-4, [email protected] > wrote: > > I need a for loop for calculating my function values in a less memory > requirements way. > Nothing more. > I hope that theano will use then the less memory version for the function > for generating gradients also in a less memory usage way. > So is there a way looping it with theano symbolic code,, which works and > does not give errors like the one with standard python code. > Or perhaps does anyone know, what is the mistake in the loop before? > > Am Donnerstag, 9. März 2017 21:27:40 UTC+1 schrieb Gábor Borbély: > > Dear roman..., > > I don't understand what you are trying to achieve. > What do you mean by "calculate the derivatives of a function"? > Like f, f', f'', f''' ...? > Or numerical derivatives? > > cheers > gaebor > > 2017. február 27., hétfő 9:55:39UTC+1 időpontban [email protected] > a következőt írta: > > > I tried the for loop with standard python code: > > > 1. EPhiTPhi = np.zeros((50,50)) > 2. for i in range(0, 900): > 3. D_n_temp = SIGMA_trf[i,:][None,None, :] > 4. d_n_temp = MU[i,:][None,None, : > 5. EPhiTPhi = EPhiTPhi + T.exp(-0.5 * (S_hat_minus**2 * > D_n_temp).sum(2)) * T.cos((S_hat_minus * d_n_temp).sum(2) + > big_sum_minus) + T.exp(-0.5 * (S_hat_plus**2 * D_n_temp).sum(2)) * T. > cos((S_hat_plus * d_n_temp).sum(2) + big_sum_plus) > > > > But when I want to use it in theano, I get the error: > > ... > > File "theano\compile\pfunc.py", line 93, in clone_v_get_shared_updates > clone_v_get_shared_updates(i, copy_inputs_over) > > File "theano\compile\pfunc.py", line 93, in clone_v_get_shared_updates > clone_v_get_shared_updates(i, copy_inputs_over) > > RuntimeError: maximum recursion depth exceeded > > > Even by setting sys.setrecursionlimit(...) to very high number. > > Thanks for your help. > > -- > > --- > You received this message because you are subscribed to the Google Groups > "theano-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- --- You received this message because you are subscribed to the Google Groups "theano-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
