How can one get parameters of fitlm as an output? Part 2

In Part 1 https://www.mathworks.com/help/stats/linearmodel.anova.html#bszh780-1-tbl

I learned how to get a table variable of 'table'= "ANOVA summary statistics table."

I now want to extract an element and got 1*1 table.

How can one convert 1*1 table to string?

Answer 1

[Ameer Hamza]

avova() returns a table object. You need to access its value like any normal table: https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-table.html

For example, consider this code from the documentation page of avova:

load hospital
tbl = table(hospital.Age,hospital.Sex,hospital.BloodPressure(:,2), ...
    'VariableNames',{'Age','Sex','BloodPressure'});
tbl.Sex = categorical(tbl.Sex);
mdl = fitlm(tbl,'BloodPressure ~ Sex + Age^2')

tbl = anova(mdl)

Result

>> tbl
tbl =
  4×5 table
             SumSq     DF    MeanSq       F        pValue 
             ______    __    ______    _______    ________
    Age      18.705     1    18.705    0.40055     0.52831
    Sex      222.09     1    222.09     4.7558    0.031643
    Age^2    30.934     1    30.934    0.66242     0.41772
    Error    4483.1    96    46.699                       

You can access values like this

>> tbl.pValue(4)
ans =
    0.5000
>> tbl{1,1}
ans =
   18.7052
>> tbl{3,2}
ans =
     1
>> tbl{2,5}
ans =
    0.0316

or

>> tbl.SumSq(1)
ans =
   18.7052
>> tbl.DF(3)
ans =
     1
>> tbl.pValue(2)
ans =
    0.0316

[alpedhuez]

Yes but the output is 1*1 table that was not easy to deal.