what changes are required in the code?

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Manav Divekar 2021-11-18

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评论： Manav Divekar 2021-11-18

i have a data base with name gender and age not necessarily in the same order, some data base is gender name age. for example

'name' 'gender' 'age'

'mary' 'f' 25

'john' 'm' 35

'anna' 'f' 30

'paul' 'm' 22

'elaina' 'f' 38

what changes is required in the code so that i can only display femate above age of 30 and less that 40

function [patient] = filterpatients_cell(data)
colage = data(strcmp(data(1,:),'age'),1);
if colage == 30 && colage <= 40
col = strcmp(data(1,:),'gender');
out = data(strcmp(data(:,col),'f'),1); 
end
patient = out;

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Answer 1

KSSV 2021-11-18

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在 MATLAB Online 中打开

A table would be good to deal with.

name =  {'mary','john','anna','paul','elaina'}'  ;
gender = {'f',   'm',   'f',   'm',   'f'}' ; 
age  = [25,    35,    30,    22,    38]'  ; 
T = table(name,gender,age) 
T = 5×3 table
       name       gender    age
    __________    ______    ___

    {'mary'  }    {'f'}     25 
    {'john'  }    {'m'}     35 
    {'anna'  }    {'f'}     30 
    {'paul'  }    {'m'}     22 
    {'elaina'}    {'f'}     38 
% Get females 
idx = strcmp(T.gender,'f') ;
% GEt age 
T1 = T(idx,:) ;
idx = T1.age >= 30 & T1.age <= 40 ;
T2 = T1(idx,:)
T2 = 2×3 table
       name       gender    age
    __________    ______    ___

    {'anna'  }    {'f'}     30 
    {'elaina'}    {'f'}     38 