如何在此脚本中修复“未定义的函数或变量”错误?

时间:2013-11-22 19:59:20

标签: matlab structure

我正在实现以下功能来查询名为“Texas”的所有大学词条:

function [] = queryHandler(structName, fieldName, fieldValue)

% query for college names



for i = 1:1:length(structName.fieldName)
    if strcmp(structName(i).fieldName, fieldValue)
        if strcmp(fieldName, 'name')
            foundNames(i) = structName(i);
        elseif strcmp(fieldName, 'nickName')
            foundnickNames(i) = structName(i);
        elseif strcmp(fieldName, 'location')
            foundLoactions(i) = structName(i);

    end
end

if strcmp(fieldName, 'name')
    foundNames
elseif strcmp(fieldName, 'nickName')
    foundnickNames
elseif strcmp(fieldName, 'location')
    foundLocations
end
end

这是主要的脚本:

%collegeDatabase main test script
clc
clear


%preallocation for speed
names = {'Kansas', 'KSU', 'Oklahoma', 'Texas', 'Alabama', 'LSU', 'Mizzou', 'Stanford', 'Auburn', 'Oregon'};
nickNames = {'Jayhawks', 'Wildcats', 'Sooners', 'Longhorns', 'Crimson Tide', 'Tigers', 'Tigers', 'Cardinals', 'Tigers', 'Ducks'};
locations = {'Kansas', 'Kansas', 'Oklahoma', 'Texas', 'Alabama', 'Louisiana', 'Missouri', 'California', 'Alabama', 'Oregon'};

college(10).name = {' '};
college(10).nickName = {' '};
college(10).location = {' '};

%creation of structure for college names, nicknames, loactions

for i = 1:length(names)
    college(i).name = names(i);
    college(i).nickName = nickNames(i);
    college(i).loaction = locations(i);
end

queryHandler(college, name, Texas)

我正在尝试获取这些输入来搜索大学(i).name是数据库中的'Texas'。我该怎么处理这里的输入来解决这个问题?感谢

1 个答案:

答案 0 :(得分:0)

首先,在主脚本中,您可能应该调用queryHandler(college, 'name', 'Texas')

其次,在您的功能中,您应该将所有structName(i).fieldName来电更改为structName(i).(fieldName)

最后,在你的for循环中,你应该到structName(0).(fieldName)。您的结构本身没有元素fieldName,但每个元素都有。