MATLAB: Cancer ” data set ” in Breast cancer diagnosis

breast cancerbreast cancer diagnosiscancer

for the program in this link http://read.pudn.com/downloads197/sourcecode/macos/928928/CancerDiagnosis.m__.htm

the parameter " cancer " is not defined in the file , however, the program is running ?

does that mean that " cancer " is built in somehow ?

Best Answer

Mohamed - the variable cancer is an input parameter to several functions. For example,

 function [Arbol taux] = arbol_training(trainmat,Arbol,cancer,taux)

where arbol_training is called as

 Arbol =arbol_training(trainmat,Arbol,cancertrain,taux);

with cancertrain being initialized a few lines above.

Related Solutions

MATLAB: Is the structure created from a GenBank-file within the Bioinformatics Toolbox 1.0 (R13SP1+) missing the “Sequence” information

The BASECOUNT line has been removed from GenBank-files in Release 137 format. The GENBANKREAD function, used to read in the GenBank-files, looks for the BASECOUNT line before it reads in the sequence information. If this line is not found, the function stops reading from the file.

An updated version of the GENBANKREAD function is available here:

http://www.mathworks.com/help/bioinfo/ref/genbankread.html

Use it to replace the $MATLAB/toolbox/bioinfo/bioinfo/genbankread.m file (where $MATLAB is the root directory of your MATLAB installation).

MATLAB: Which Network can I use for cancer diagnosis

Which Network can I use for cancer diagnosis? Asked by Shraboni Mondal on 29 Dec 2012 at 15:30

% Hello,I am new in MATLAB application and I have some doubts and queries
% also.Please suggest me.
% 
% 1> I am using NN toolbox nprtool for cancer diagnosis.I want to do some
% comparative test using other networks and algorithms.Which are the all
% networks and algorithms can I use, please suggest and also which tool can
% I use?

Tool: nprtool

Nets: Either patternnet or the obsolete newpr.

help newpr

doc newpr

help patternnet

doc patternnet

% 2>nntool also have some networks but I am getting better result using % nprtool for BPNN, why so?

The 'pr' indicates created for pattern recognition and classification

% 3> Nprtool have the option for BPNN,is it possible to use other networks % also like wise?if so,then what is the command for that?

Forget it. Only use patternnet or newpr

% 4> Does the code for one release of MATLAB varies from other?

Yes

% I am using R2008a. Is it possible se the same come for all releases?

No. Check the website documentation for BUGS and release changes

Patternnet introduced in 2010. Use newpr. Practice on the 7 sample data sets

InputMatrix: Standardize input matrix with zscore or mapstd

                   [ I N ]  =  size(input)

TargetMatrix: For c classes the target matrix columns should be columns of the c-dimensional unit matrix.

                   [ O  N ]  =  size( target)   % O = c

Classindices: classind = vec2ind(target)

Transfer Functions: { 'tansig' 'logsig' }

Training Function: 'trainscg'

Training: [ net tr ] = ntrain(net,inputs,target);

History: tr = tr

Output: y = net(input);

Assigned classes: assignedclass = vec2ind(y)

Errors: Err = (assignedclass ~= classind)

No. errors: Nerr = sum(Err)

Error Rate: PCTerr = 100*Nerr/N

To obtain separate trn/val/tst errors, use the masks and indices in tr.

Hope this helps.

Thank you for formally accepting my answer.

Greg

Best Answer

Related Solutions

MATLAB: Is the structure created from a GenBank-file within the Bioinformatics Toolbox 1.0 (R13SP1+) missing the “Sequence” information

MATLAB: Which Network can I use for cancer diagnosis

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