Pull data from Excel sheet based on 2 conditions

I have an Excel sheet that I've imported into MATLAB. In the Excel sheet, cells 2A - 5A represent condition A, while cells 1B - 1F represent condition B. Columns B-F and rows 2-5 represent values based on the 2 conditions. How do I get MATLAB to call a particular value from the Excel sheet by inputting a numerical value for conditions A and B?

Answer 1

[Gillian Rosen]

Hi Rachel, 

I understand that you would like to access the data in a particular cell of an imported Excel spreadsheet by specifying a numerical condition for the row (condition A) and column (condition B). 

Once you import your Excel spreadsheet to a matrix in MATLAB, you can use the 'find' command to find which row and column of the matrix correspond to a particular condition. You can then index into the matrix using your desired row and column. For example: 

% Import spreadsheet data to matrix
myExcelData = xlsread('mySpreadsheet.xlsx');

% Set desired conditions
conditionA = 3.5;
conditionB = 200;

%  Find row and col of desired conditions
[row,~] = find(myExcelData == conditionA);
[ ~,col] = find(myExcelData == conditionB);

% Obtain data at desired conditions
myValue = myExcelData(row,col);

See the documentation for the 'find' function for more information and examples: 

http://www.mathworks.com/help/matlab/ref/find.html#budq84b-1

[Ashish Kulkarni]

Hi Rosen,

can u tell how to import data from an excel sheet based on conditions while using importdata.

My problem is the file size is too big for import. If I use entire selection, my laptop runs out of memory.

Or whenI load the data using import function, how do I filter it based on a condition and then import it as a table or matrix?

[Ashish Kulkarni]

The structure of my file is as follows, I want rows related to a particular date only to be imported.

ID_frame TimeStamp MAC ID RSSI Vendor cod sync DeviceID

1 23-05-2019 12:34 e6aa4f2224ee98e98 -78 Unknown SmartPhone 0 1.91E+13

2 23-05-2019 12:34 f7af897c07bf765a9 -90 Unknown SmartPhone 0 1.91E+13

3 23-05-2019 12:35 e6aa4f2224ee98e98 -69 Unknown SmartPhone 0 1.91E+13

4 23-05-2019 12:35 f7af897c07bf765a9 -88 Unknown SmartPhone 0 1.91E+13

5 23-05-2019 12:36 24cb3474f61a53bac -89 Bluegiga Technologies OY Uncategorized 0 1.91E+13

6 23-05-2019 12:36 e6aa4f2224ee98e98 -85 Unknown SmartPhone 0 1.91E+13