I am using MXNet on IRIS dataset which has 4 features and it classifies the flowers as -'setosa', 'versicolor', 'virginica'. My training data has 89 rows. My label data is a row vector of 89 columns. I encoded the flower names into number -0,1,2 as it seems mx.io.NDArrayIter does not accept numpy ndarray with string values. Then I tried to predict using
re = mod.predict(test_iter)
I get a result which has the shape 14 * 10. Why am I getting 10 columns when I have only 3 labels and how do I map these results to my labels. The result of predict is shown below:
[[ 0.11760861 0.12082944 0.1207106 0.09154381 0.09155304 0.09155869 0.09154817 0.09155204 0.09154914 0.09154641] [ 0.1176083 0.12082954 0.12071151 0.09154379 0.09155323 0.09155825 0.0915481 0.09155164 0.09154923 0.09154641] [ 0.11760829 0.1208293 0.12071083 0.09154385 0.09155313 0.09155875 0.09154838 0.09155186 0.09154932 0.09154625] [ 0.11760861 0.12082901 0.12071037 0.09154388 0.09155303 0.09155875 0.09154829 0.09155209 0.09154959 0.09154641] [ 0.11760896 0.12082863 0.12070955 0.09154405 0.09155299 0.09155875 0.09154839 0.09155225 0.09154996 0.09154646] [ 0.1176089 0.1208287 0.1207095 0.09154407 0.09155297 0.09155882 0.09154844 0.09155232 0.09154989 0.0915464 ] [ 0.11760896 0.12082864 0.12070941 0.09154408 0.09155297 0.09155882 0.09154844 0.09155234 0.09154993 0.09154642] [ 0.1176088 0.12082874 0.12070983 0.09154399 0.09155302 0.09155872 0.09154837 0.09155215 0.09154984 0.09154641] [ 0.11760852 0.12082904 0.12071032 0.09154394 0.09155304 0.09155876 0.09154835 0.09155209 0.09154959 0.09154631] [ 0.11760963 0.12082832 0.12070873 0.09154428 0.09155257 0.09155893 0.09154856 0.09155177 0.09155051 0.09154671] [ 0.11760966 0.12082829 0.12070868 0.09154429 0.09155258 0.09155892 0.09154858 0.0915518 0.09155052 0.09154672] [ 0.11760949 0.1208282 0.12070852 0.09154446 0.09155259 0.09155893 0.09154854 0.09155205 0.0915506 0.09154666] [ 0.11760952 0.12082817 0.12070853 0.0915444 0.09155261 0.09155891 0.09154853 0.09155206 0.09155057 0.09154668] [ 0.1176096 0.1208283 0.12070892 0.09154423 0.09155267 0.09155882 0.09154859 0.09155172 0.09155044 0.09154676]]
Using "y = mod.predict(val_iter,num_batch=1)" instead of "y = mod.predict(val_iter)", then you can get only one batch labels. For example,if you batch_size is 10, then you will only get the 10 labels.