MATLAB: How many datasets are used to training neural network in one iteration

Question

If neural network has two inputs and one output, and there are 100 datasets for two inputs and one output, how many datasets are used in one iteration training. I use default setting for training set (70%), validation set (15%), and test set (15%). Does one iteration training uses 70% randomly selection training data? Who can give the answer? Thank you.

Answer 1

 1 dataset
 100 examples

Each epoch the batch training default, trainlm, uses 70 training examples to update weights, output and training error; 15 examples to update validation output and validation error and the remaining 15 examples to update the test output and test error.

Hope this helps.

Thank you for formally accepting my answer

Greg