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How to include string + numbers in a table using a for...end routine

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giora landesberg
giora landesberg on 4 Dec 2019
Answered: giora landesberg on 5 Dec 2019
Dear experts,
I am a physician and a poor matlab programmer. Nevertheless, I am trying to constract a program that automatically reads multiple excel files, each containing data from exercise stress tests of patients.
I have programmed already the routine that reads nicely one such excel file and extracts the following variables:
Results=[Name, ID, Date, Age, sex, ESTdur, TargetHR, METs, STlevel, STslope, HR_EST, SBP_EST, DBP_EST]
This is an output of one patient.
Name, ID, Date, Age, sex, ESTdur, TargetHR, METs, STlevel, STslope, are all string variables
HR-EST, SBP_EST and DBP_EST are 3 numeric arrays, each containing 26 numbers of heart rate, systolic and diastolic blood pressures, all converted to cells (or strings).
I am trying to collect the above Results output for many patients (thousands) and put all of the in a table such that each patient is one raw.
I wrote a for.....end routine that can read many excel files.
My problem however is that when I try to include each patient in the matrix FResults by: FResults(f,:)=Results
I get an error message of mismatch : "Conversion to double from cell is not possible."
How should I do that properly??
Thank you in advance. Giora
.

Answers (3)

Jeremy
Jeremy on 4 Dec 2019
It sounds like you might want to use the command
readtable
This will read your entire spreadsheet as a table data type

giora landesberg
giora landesberg on 5 Dec 2019
Hi Jeremy,
Thank you for your idea.
II have read the table already and extracted all the data I need from the table,
Now I need to generate another spreadsheet in which every patient's data is in one raw only.
I have done that too.
Results=[Name, ID, Date, Age, sex, ESTdur, TargetHR, METs, STlevel, STslope, HR_EST, SBP_EST, DBP_EST]
Now in a for....end loop I want to read hundreds of spreadsheets, extract the same data from all of them and include each patient (raw) in the ndw table.
My problem is that when I assign each raw with the changing variable:
FResults(f,:)=Results (f being the index of the new raw)
I get an error mesage. It expects FResults(f,:) to be of a numeric form and not string or table.
Any idea??
Thanks, Giora

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