photo

Nirmal


Actif depuis 2011

Followers: 0   Following: 0

Message

Statistiques

All
  • Knowledgeable Level 3
  • First Review
  • First Submission
  • 3 Month Streak
  • Thankful Level 3
  • Revival Level 1
  • Knowledgeable Level 2
  • First Answer
  • Solver

Afficher les badges

Feeds

Afficher par

Question


Canonical Correlation Analysis - canoncorr function in matlab
I am just starting with CCA, I am trying to explore it using the matlab function, but I guess I am stuck understand the result I...

presque 12 ans il y a | 1 réponse | 0

1

réponse

Question


Understanding output of perfcurve
[X,Y,T,AUC2,OPTROCPT] = perfcurve(classtest,classpredict,2); My classtest as well as classpredict are 460*1, but when i run ...

environ 12 ans il y a | 1 réponse | 0

1

réponse

Question


SVM Error - The first input should be a struct generated by SVMTRAIN
I am getting error using following code with SVM SVMStruct1 = svmtrain(data,class,'kernel_function','linear'); class12=...

environ 12 ans il y a | 1 réponse | 0

0

réponse

Réponse apportée
What do all these errors mean and is there anything that I can do to prevent/fix this
http://www.mathworks.com/help/matlab/matlab_prog/resolving-out-of-memory-errors.html This might help!

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
Error using ==> mtimes Inner matrix dimensions must agree.
pts3 = H*[pts1;ones(1,n)]; if you check the size of H and size of [pts1;ones(1,n)], the no. of columns of H and no. o...

plus de 12 ans il y a | 0

Réponse apportée
getting rid of a loop
b=[V(:,4) V(:,5) V(:,10) V(:,18)] b will be what you want.

plus de 12 ans il y a | 0

Question


ROC curve for Decision Tree
I am getting ROC curve for decision tree but I am a bit taken away by the curve. Its similar to the curve, http://ard.bmj.com...

plus de 12 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
Entering a formula by user
Have a look at eval: http://www.mathworks.com/help/techdoc/ref/eval.html aMatrix = magic(5); expression = input('Ent...

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
Subscript indices must either be real positive integers or logicals; Perimeter issue
plot(x,y((i-1)*5000:i*5000),'g') when i=1, you are indexing y from 0:5000, matlab doesnt have 0 index.

plus de 12 ans il y a | 1

| A accepté

Réponse apportée
Why do I get this response 'Operands to the || and && operators must be convertible to logical scalar values.'?
G=str2num(Grade); G will be a string so you need to convert that to a number using the str2num function. Its better to use...

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
rows which do not contain zero
count=sum(sum(D==0,2)==0) count will be the number of rows which are not all zeros in matrix D.

plus de 12 ans il y a | 0

Réponse apportée
Initialization of array of structure
You shouldnt do LD=[], instead you should change the field of each of the structure in the array.

plus de 12 ans il y a | 0

Réponse apportée
a simple question about for loop
First of all its loop not loob. I hope you meant range as a variable. the following code should work. for a = (1:10) ...

plus de 12 ans il y a | 0

Réponse apportée
xlsread uses ''basic mode'' on windows with excel
I think it is because you used xlsx file if you use xls you should be fine.

plus de 12 ans il y a | 0

Réponse apportée
Converting Excel columns to a vector
hf=[]; for i = 1:3 % Loop over the files a = xlsread(dataFiles{i}); % Load the data ...

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
creating a string variable to be used in xlswrite
product={'carrots' 'vegetables' 'tomatoes'}; country={'DE' 'FR' 'UK'}; Name={sprintf('Input_%s_%s.xls',count...

plus de 12 ans il y a | 0

Réponse apportée
Concatenate Cell Arrays (string and numeric)
a={'john','harry'}; b={'20','30'}; a=strcat(a,'(',b,'%)');

plus de 12 ans il y a | 0

Réponse apportée
Concatenate Cell Arrays (string and numeric)
a={'john','harry'}; b={'20','30'}; s='%' for i=1:2 bb=cell2mat(b(1,i)); str=sprintf('(%s%s)',bb,s); ...

plus de 12 ans il y a | 1

| A accepté

Question


How to save the plot with two lines
x=rand(1,10); y=1:10; h=plot(x,y,'r',x,y,'g'); saveas(h, 'test','jpg'); I want to save the plot above but i get an...

plus de 12 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
Read Data from .CSV File
fid = fopen(filename); M=textscan(fid,'%s','collectoutput',1,'headerlines',0); fclose(fid); X=M{1,1}; X wil...

plus de 12 ans il y a | 0

Réponse apportée
reading data from dataset.txt
fid = fopen('data.txt'); M=textscan(fid,'%s'); fclose(fid); X=M{1,1} X will have each element includin...

plus de 12 ans il y a | 0

Réponse apportée
How to access the variable range for leaf node in decision tree
Had to do little bit of coding but got it anyway. :)

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
Random numbergeneration with constraints
What happens if number of columns is something large may be 20? it would definitely cross your constraint of 60. if you plot the...

plus de 12 ans il y a | 0

Question


How to access the variable range for leaf node in decision tree
I want to access the variable range for each of the leaf node for the decision tree that is created by using classregtree. I can...

plus de 12 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
Warning on Calling fortran code in Matlab2011a
If I am not wrong, its just the warning. you might wanna try. warning off;

plus de 12 ans il y a | 0

Réponse apportée
Multiple outputs from one function?
A simple example of it is: function [a,b]= myfunction(c,d) a=c*d; b=c+d; Function returns a,b.

plus de 12 ans il y a | 1

| A accepté

Réponse apportée
matrix nan
a=[2 3 NaN 5 NaN NaN 9 3 2]; [m,n]=size(a); b=isnan(a); for j=1:n if b(j)==1 li=j-1; ...

plus de 12 ans il y a | 0

Réponse apportée
Sorting Matricies
[b,c]=sort(a) b will have the sorted a, while c contains the index. Hope it helps.

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
For an nx3 matrix, order the 3 entries in each row, then order rows from least to greatest, then check for repeated rows.
This should do the job for you. a=rand(5,3); [m,n]=size(a); a=sort(a,2); a=sortrows(a,3); temp=[]; f...

plus de 12 ans il y a | 0

Réponse apportée
[Help]+Matrix Operation
b is being used as an index. t is an array with elements incrementing my 0.999, which means b is also an array. Now elements ...

plus de 12 ans il y a | 0

Charger plus