lib/rumale/kernel_machine/kernel_svc.rb in rumale-0.19.2 vs lib/rumale/kernel_machine/kernel_svc.rb in rumale-0.19.3

@@ -170,10 +170,10 @@
         weight_vec = Numo::DFloat.zeros(n_training_samples)
         sub_rng = @rng.dup
         # Start optimization.
         @params[:max_iter].times do |t|
           # random sampling
-          rand_ids = [*0...n_training_samples].shuffle(random: sub_rng) if rand_ids.empty?
+          rand_ids = Array(0...n_training_samples).shuffle(random: sub_rng) if rand_ids.empty?
           target_id = rand_ids.shift
           # update the weight vector
           func = (weight_vec * bin_y).dot(x[target_id, true].transpose).to_f
           func *= bin_y[target_id] / (@params[:reg_param] * (t + 1))
           weight_vec[target_id] += 1.0 if func < 1.0