How to solve "Matrix dimensions must agree error" for this function?
1 view (last 30 days)
Show older comments
Matrix Dimensions didn't agree in a function. Please tell me the meaning of unique function. While i try to debug the function by setting breakpoints, the trblock cell array receives value only in the 1x6th location, it actually has 1x8 cell array, all other locations are empty. and the tr_block_diag_mat has 15x15 single value
my values are tr_descr = 114x98, tt_descr = 112x98, tr_label = 114x1, tt_label = 112x1, tottrainlabel = 231x1
Error in ProCRC (line 34) tr_sym_mat = (gamma * (class_num - 2) + 1) * (tr_descr' * tr_descr) + gamma * tr_block_diag_mat + lambda * eye(size(tr_descr, 2));
%%Function
function Alpha = ProCRC(data, params)
tr_descr = data.tr_descr;
tt_descr = data.tt_descr;
tr_label = data.tr_label;
gamma = params.gamma;
lambda = params.lambda;
class_num = params.class_num;
tt_num = length(data.tt_label);
model_type = params.model_type;
tr_blocks = cell(1, class_num);
for ci = 1: class_num
tr_blocks{ci} = tr_descr(:,tr_label == ci)' * tr_descr(:,tr_label == ci);
end
tr_block_diag_mat = blkdiag(tr_blocks{:});
tr_sym_mat = (gamma * (class_num - 2) + 1) * (tr_descr' * tr_descr) + gamma * tr_block_diag_mat + lambda * eye(size(tr_descr, 2));
%%Main program
data.tr_descr = F_train';
data.tt_descr = F_test';
data.tr_label = otrainlabel;
data.tt_label = otestlabel';
dataset.label = tottrainlabel;
% class_num = length(unique(dataset.label));
class_num = length(unique(data.tr_label'));
params.gamma = [1e-2];
params.lambda = [1e-0];
params.class_num = class_num;
params.dataset_name = 'Action';
params.model_type = 'NN';
Alpha = ProCRC(data, params);
1 Comment
KSSV
on 11 Jan 2017
Problem is here in this line:
tr_blocks{ci} = tr_descr(:,tr_label == ci)' * tr_descr(:,tr_label == ci);
This is resulting into a empty matrix and creating problem. check that line once.
Answers (0)
See Also
Categories
Find more on Gamma Functions in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!