Tomasz Kaczmarski

Last seen: 5 years ago | Active since 2020

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CVpartition inside CVpartition to decrease dataset siz
Hi My training time is very slow to improve it i got idea to make cv partition inside cv partition but im not sure how to do i...

5 years ago | 1 answer | 0

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Question

for loop with if statement update double
im doing simple loop as below unfortunetly its not working as expected my expected output is when t=4 then yscore 1 else yscore...

5 years ago | 1 answer | 0

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Question

confusion matrix vs roc 100%
Hello when i plot roc im expecting straight line to top left (point(0,1) and then to top right(1,1) as mine confusion matrix...

5 years ago | 1 answer | 0

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Question

ROC on LM backrpopagation
Hello when I run code below My ROC as on example from https://uk.mathworks.com/help/deeplearning/ref/plotroc.html is singl...

5 years ago | 0 answers | 0

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Question

[c] = confusion(t,y) and not classified observations
Hi [c] = confusion(t,y) [c] its Confusion value = fraction of samples misclassified but output of code bellow can be values...

5 years ago | 1 answer | 0

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Question

append file from loop
hello how i can append file from each loop output folloing https://uk.mathworks.com/help/matlab/ref/writetable.html gives me...

5 years ago | 1 answer | 0

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plot confusion for backpropagation output
Hello im trying to plot confusion matrix for all where i can see accuracy of each class as shown in https://uk.mathworks.com...

5 years ago | 1 answer | 0

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Question

adding noise increased accuracy after training
Hello I calculated noise in two different ways and each time i training im getting accuracy 100% for noise data and 99 for d...

5 years ago | 1 answer | 0

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trainlm predict value & switch
output of trained network is y from load data Tb = readtable('train1.csv','PreserveVariableNames',true) x = Tb(:,(1:562)...

5 years ago | 1 answer | 0

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Question

convert string into number in table
Hi attached file is a table with 'STANDING','SITTING','LAYING','WALKING','WALKING_DOWNSTAIRS','WALKING_UPSTAIRS' could you ...

5 years ago | 1 answer | 0

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Question

discrte to softmax : Attempt to grow array along ambiguous dimension
Hello Im trying to run below function but constantly getting error Attempt to grow array along ambiguous dimension. Err...

6 years ago | 1 answer | 0

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Question

error in plotting Index in position 2 exceeds array bounds.
Hello Im quite new to matlab currently im trying to plot as in https://uk.mathworks.com/help/stats/classificationecoc.html ...

6 years ago | 1 answer | 0

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