Hello, facing a problem on running first part of the program showing the given error ; i also add the 2nd part of this program and 2nd para and errors too.

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md sazzad on 25 Apr 2023

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Commented: md sazzad on 26 Apr 2023

function [EPClist,data]=extraction_data(Nomfichier)
dummy=readtable(Nomfichier);
%importfile
j=1;
for i=1:height(dummy)
    if strtrim(dummy.OperationResult(i))=="Read OK"
        %dummy.OperationResult(i)==" Read OK"
        %' Read OK'
        data_raw(j,1)=dummy.Date(i);
        data_raw(j,2)=dummy.EPC(i);
        data_raw(j,3)=dummy.ReadData(i);
        j=j+1;
    end
end
clear dummy
EPClist=unique(data_raw(:,2));
Nb_capteur=length(EPClist);
data=cell(1,Nb_capteur);
for i=1:Nb_capteur
    k=1;
    for j=1:length(data_raw)
        if data_raw(j,2)==EPClist(i)
            %data{i}(k,1)=data_raw(j,1);
            %data{i}(k,1)=0;
            data{i}(k,1)=hex2dec(data_raw{j,3}(5:8));
            temphexa=data_raw{j,3}(9:12);
            if temphexa(1)=='F'
                data{i}(k,2)=1/100*(hex2dec(temphexa)-hex2dec('FFFF')+1);
            else
                data{i}(k,2)=1/100*hex2dec(temphexa);
            end
            k=k+1;
        end
    end 
    EPClist{i}=EPClist{i}(end-3:end);
end

data extraction program:

clear
clc
close all
%données d'entrée 7534 - campagne controle calibration après campagne ISE
%AZUL - Run5 define the presure 
table_pression{1}=[...
    20;75;180;240;300;480;400;270;210;150 ;...
    20;75;180;240;300;480;400;270;210;150 ;...
    20;75;180;240;300;480;400;270;210;150 ;...
    20;75;180;240;300;480;400;270;210;150 ;...
    20;75;180;240;300;480;400;270;210;150 ;...
    20;75;180;240;300;480;400;270;210;150 ];
% The points which we dont want to see...            
table_delete=[1 317;1049 1549;2290 2796;3521 4027;4767 5291;6014 6511;7243 10000];
% Defining train file for sending the trains 
titre='C:\Users\FX625040\Documents\Stage\Scripts Matlab\PresSense\data_log\capteur_7520_2023-01-09.xlsx';
%% data extract
%The function is to extract palier where the pressure and temprature EPC (eular
%pole parameters?)calling the functions detec palier and the output are
%EPC,pressure;temprature
[EPC,pression,temperature]=detect_palier(titre,table_delete);
%% traitement de toutes les données
num_sensor=length(EPC);
for sens=1:num_sensor
    
    %% palier extract
    
    clearvars data temp n_palier indice_palier palier_extract SYNTH_RES X Y Z
    
    data=pression{sens};
    temp=temperature{sens};
    
    
    n_palier=ones(1,length(data));
    current_palier=1;
    indice_palier(1,1)=1;
    
    % Ancienne fonction de détection de palier
    % for i=2:length(data)
    %     if (data(i)>data(i-1)+5) || (data(i)<data(i-1)-5)
    %         current_palier=current_palier+1;
    %         indice_palier(current_palier-1,2)=i-1;
    %         indice_palier(current_palier,1)=i;
    %     end
    %     n_palier(i)=current_palier;
    % end
    
    % Nouvelle fonction de détection de palier
    % new functions to detection of palier
    for i=2:length(data)
        if (data(i)>data(i-1)+300) || (data(i)<data(i-1)-300)
            current_palier=current_palier+1;
            indice_palier(current_palier-1,2)=i-1;
            indice_palier(current_palier,1)=i;
        end
        n_palier(i)=current_palier;
    end
    
    
    nb_palier=max(n_palier);
    indice_palier(nb_palier,2)=length(data);
    % plot figure
    f=figure('Name',strcat(EPC{sens},'_paliers_extraits'),'units','normalized','outerposition',[0 0 1 1]);
    clear ha
    ha(1)=subplot (3,1,1);
    plot(data,'-o')
    ha(2)=subplot (3,1,3);
    plot(temp)
    ha(3)=subplot (3,1,2);
    plot(n_palier,'-')
    linkaxes(ha,'x');
    ylabel(ha(1),'ratio (µV/V)');
    ylabel(ha(2),'temperature (°C)');
    ylabel(ha(3),'# palier')
    xlabel(ha(3),'# sample')
    % for saving the graph
    saveas(f,strcat('.\results\graphes\SN',EPC{sens},'_paliers_extraits.png'))
    
    %%Palier moyenné sur la plage stable
    % for i=1:nb_palier
    %     palier_extract(i,1)=(mean(data(indice_palier(i,1):indice_palier(i,2))))/1000000;
    %     palier_extract(i,2)=mean(temp(indice_palier(i,1):indice_palier(i,2)));
    % end
    
    %% palier = le dernier point seulement
    for i=1:nb_palier
        palier_extract(i,1)=data(indice_palier(i,2))/1000000;
        palier_extract(i,2)=temp(indice_palier(i,2));
    end
    
    %%
    % table_pression_bar=table_pression{sens};
    % table_pression_psi=table_pression_bar*14.503773800721815;
    table_pression_psi=table_pression{sens};
    
    %% new figure for new paliers
    f=figure('Name',strcat(EPC{sens},'_paliers_extraits2'),'units','normalized','outerposition',[0 0 1 1]);
    clear ha
    ha(1)=subplot (2,1,1);
    plot(palier_extract(:,1),'o')
    ha(2)=subplot (2,1,2);
    plot(palier_extract(:,2),'o')
    
    linkaxes(ha,'x');
    ylabel(ha(1),'ratio (µV/V)');
    ylabel(ha(2),'temperature (°C)');
    
    saveas(f,strcat('.\results\graphes\SN',EPC{sens},'_paliers_extraits2.png'))
    
    
    
    %% Fit
    %[FCT_COR,GOF,OUTPUT]=fit([T,alpha],P,'polytype')
    X=palier_extract(:,2);
    Y=palier_extract(:,1);
    Z=table_pression_psi;
    
    
    %% Exploitation résultats fit poly21
    [FCT_COR,GOF,OUTPUT]=fit([X,Y],Z,'poly31');
    Res_max=max(abs(OUTPUT.residuals));
    Res_moy=mean(OUTPUT.residuals);
    
    SYNTH_RES{1,1}='SN Capteur';
    SYNTH_RES{1,2}='Polynome';
    SYNTH_RES{1,3}='';
    SYNTH_RES{1,4}='Résidu max';
    SYNTH_RES{1,5}='Résidu moy';
    SYNTH_RES{1,6}='R²';
    SYNTH_RES{1,7}='Erreur standard';
    SYNTH_RES{3,3}='Valeur hexa à inscrire'; 
    SYNTH_RES{2,1}=EPC{sens};
    SYNTH_RES{2,2}='p00+p01*x+p10*y+p11*x*y+p20*x^2';
    SYNTH_RES{2,4}=Res_max;
    SYNTH_RES{2,5}=Res_moy;
    SYNTH_RES{2,6}=GOF.rsquare;
    SYNTH_RES{2,7}=GOF.rmse;
    
    POLY_NAMES=coeffnames(FCT_COR);
    POLY_VALUES=coeffvalues(FCT_COR);
    for m=1:length(POLY_NAMES)
        SYNTH_RES{m+3,1}=POLY_NAMES{m}; 
        SYNTH_RES{m+3,2}=POLY_VALUES(m);
    end  
    
    %    SYNTH_RES{4,3}=strcat('''',dec2hex(round(-POLY_VALUES(1)*100),4));
    %    SYNTH_RES{5,3}=strcat('''',dec2hex(round(POLY_VALUES(2)*1000000),4));
    %    SYNTH_RES{6,3}=strcat('''',dec2hex(round(POLY_VALUES(3)),4));
    %    SYNTH_RES{7,3}=strcat('''',dec2hex(round(POLY_VALUES(4)*100),4));
    
    SYNTH_RES{length(POLY_NAMES)+5,1}='Pression banc (psi)';
    SYNTH_RES{length(POLY_NAMES)+5,2}='Température';
    SYNTH_RES{length(POLY_NAMES)+5,3}='Ratio';
    SYNTH_RES{length(POLY_NAMES)+5,4}='Residu';
    SYNTH_RES{length(POLY_NAMES)+5,5}='Pression corrigée (psi)';
    SYNTH_RES{length(POLY_NAMES)+5,6}='Pression saturée (psi)';
    
    
    for i=1:length(table_pression_psi);
        SYNTH_RES{length(POLY_NAMES)+5+i,1}=table_pression_psi(i);
        SYNTH_RES{length(POLY_NAMES)+5+i,2}=palier_extract(i,2);  
        SYNTH_RES{length(POLY_NAMES)+5+i,3}=palier_extract(i,1);
        SYNTH_RES{length(POLY_NAMES)+5+i,4}=OUTPUT.residuals(i);
        SYNTH_RES{length(POLY_NAMES)+5+i,5}=FCT_COR(palier_extract(i,2),palier_extract(i,1));  
        SYNTH_RES{length(POLY_NAMES)+5+i,6}=FCT_COR(palier_extract(i,2),15625/1000000);  
    end
    
    xlswrite(strcat('.\results\poly21\SN',EPC{sens},'_synthese_p21.xlsx'),SYNTH_RES,1);
    
    % f=figure('Name',strcat(EPC{sens},'_pression_sat_bar'),'units','normalized','outerposition',[0 0 1 1]);
    % clear ha
    % ha=plot(palier_extract(:,2),FCT_COR(palier_extract(:,2),15625/1000000)/14.503773800721815);
    %     ylabel('pression de saturation (bar)');
    %     xlabel('temperature')
    % saveas(f,strcat('.\results\graphes\poly21\SN',EPC{sens},'_pression_sat_bar.png'))
    
    f=figure('Name',strcat(EPC{sens},'_residus'),'units','normalized','outerposition',[0 0 1 1]);
    clear ha
    ha=plot(FCT_COR,[X,Y],Z,'Style','Residuals');
    ylabel('pression (µV/V)');
    xlabel('temperature (°C)');
    zlabel('residus (psi)');
    view([0 -1 0])
    saveas(f,strcat('.\results\graphes\poly21\SN',EPC{sens},'_residus_p21.png'))
    
    
    %% Exploitation résultats fit poly11
    % a polynomial regression on a set of data points (X,Y,Z)
    clearvars SYNTH_RES FCT_COR GOF OUTPUT;
    
    [FCT_COR,GOF,OUTPUT]=fit([X,Y],Z,'p00+p10*x+p01*y+p11*x*y');
    Res_max=max(abs(OUTPUT.residuals));
    Res_moy=mean(OUTPUT.residuals);
    
    SYNTH_RES{1,1}='SN Capteur';
    SYNTH_RES{1,2}='Polynome';
    SYNTH_RES{1,3}='';
    SYNTH_RES{1,4}='Résidu max';
    SYNTH_RES{1,5}='Résidu moy';
    SYNTH_RES{1,6}='R²';
    SYNTH_RES{1,7}='Erreur standard';
    SYNTH_RES{3,3}='Valeur hexa à inscrire'; 
    SYNTH_RES{2,1}=EPC{sens};
    SYNTH_RES{2,2}='p00+p10*x+p01*y+p11*x*y';
    SYNTH_RES{2,4}=Res_max;
    SYNTH_RES{2,5}=Res_moy;
    SYNTH_RES{2,6}=GOF.rsquare;
    SYNTH_RES{2,7}=GOF.rmse;
    
    POLY_NAMES=coeffnames(FCT_COR);
    POLY_VALUES=coeffvalues(FCT_COR);
    for m=1:length(POLY_NAMES)
        SYNTH_RES{m+3,1}=POLY_NAMES{m}; 
        SYNTH_RES{m+3,2}=POLY_VALUES(m);
    end  
    
    %    SYNTH_RES{4,3}=strcat('''',dec2hex(round(-POLY_VALUES(1)*100),4));
    %    SYNTH_RES{5,3}=strcat('''',dec2hex(round(POLY_VALUES(2)),4));
    %    SYNTH_RES{6,3}=strcat('''',dec2hex(round(POLY_VALUES(3)*1000000),4));
    %    SYNTH_RES{7,3}=strcat('''',dec2hex(round(POLY_VALUES(4)*100),4));
    
    SYNTH_RES{length(POLY_NAMES)+5,1}='Pression banc (psi)';
    SYNTH_RES{length(POLY_NAMES)+5,2}='Température';
    SYNTH_RES{length(POLY_NAMES)+5,3}='Ratio';
    SYNTH_RES{length(POLY_NAMES)+5,4}='Residu';
    SYNTH_RES{length(POLY_NAMES)+5,5}='Pression corrigée (psi)';
    SYNTH_RES{length(POLY_NAMES)+5,6}='Pression saturée (psi)';
    
    
    for i=1:length(table_pression_psi)
        SYNTH_RES{length(POLY_NAMES)+5+i,1}=table_pression_psi(i);
        
        SYNTH_RES{length(POLY_NAMES)+5+i,2}=palier_extract(i,2);  
        SYNTH_RES{length(POLY_NAMES)+5+i,3}=palier_extract(i,1);
        SYNTH_RES{length(POLY_NAMES)+5+i,4}=OUTPUT.residuals(i);
        SYNTH_RES{length(POLY_NAMES)+5+i,5}=FCT_COR(palier_extract(i,2),palier_extract(i,1));  
        SYNTH_RES{length(POLY_NAMES)+5+i,6}=FCT_COR(palier_extract(i,2),15625/1000000);  
    end
    
    xlswrite(strcat('.\results\poly11\SN',EPC{sens},'_synthese_p111.xlsx'),SYNTH_RES,1);
    %     xlswrite(strcat('C:\Users\FX625040\Documents\Stage\Scripts Matlab\P0',EPC{sens},'_synthese_p11.xlsx'),SYNTH_RES,1);
    
    % f=figure('Name',strcat(EPC{sens},'_pression_sat_bar'),'units','normalized','outerposition',[0 0 1 1]);
    % clear ha
    % ha=plot(palier_extract(:,2),FCT_COR(palier_extract(:,2),15625/1000000)/14.503773800721815);
    %     ylabel('pression de saturation (bar)');
    %     xlabel('temperature')
    % saveas(f,strcat('.\results\graphes\poly11\SN',EPC{sens},'_pression_sat_bar.png'))
    
    f=figure('Name',strcat(EPC{sens},'_residus'),'units','normalized','outerposition',[0 0 1 1]);
    clear ha
    ha=plot(FCT_COR,[X,Y],Z,'Style','Residuals');
    ylabel('pression (µV/V)');
    xlabel('temperature (°C)');
    zlabel('residus (psi)');
    view([0 -1 0])
    saveas(f,strcat('.\results\graphes\poly11\SN',EPC{sens},'_residus_p11.png'))
    
end

error :

Warning: Variable names were modified to make them valid MATLAB identifiers. The original names are saved in the

VariableDescriptions property.

Undefined operator '==' for input arguments of type 'cell'.

Error in extraction_data (line 26)

if data_raw(j,2)==EPClist(i)

Error in detect_palier (line 3)

[EPC,B]=extraction_data(titre);

Error in extract_palier (line 23)

[EPC,pression,temperature]=detect_palier(titre,table_delete);

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Answer 1

Cris LaPierre on 25 Apr 2023

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https://se.mathworks.com/matlabcentral/answers/1952759-hello-facing-a-problem-on-running-first-part-of-the-program-showing-the-given-error-i-also-add-th#answer_1222934

Edited: Cris LaPierre on 25 Apr 2023

Open in MATLAB Online

The current error is that you cannot compare using '==' with a cell. The solution is likely as simple as using curly braces instead fo parentheses, assuming that the cell element is a scalar. We can't test because we do not have your data file.

A = {2}
A = 1×1 cell array
    {[2]}
% using {} to extract data from the cell
A{1} == 2
ans = logical
   1
% your error caused because () returns a cell
A(1)==2
Operator '==' is not supported for operands of type 'cell'.

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md sazzad on 26 Apr 2023

Thank you a lot . it is working :) :)

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Hello, facing a problem on running first part of the program showing the given error ; i also add the 2nd part of this program and 2nd para and errors too.

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Hello, facing a problem on running first part of the program showing the given error ; i also add the 2nd part of this program and 2nd para and errors too.

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