Hi,
this is nearly the same question as you had some weeks before:
however, here is an example which selects only rows which meet conditions for 2 rows. You can extend this - use the attached .mat-file which contains date-time vector and temperature-values.
load('date_time_data.mat');
A = table(date, high, low);
>> whos A
Name Size Bytes Class Attributes
A 55237x3 1327014 table
Now make a new table only containing negative values for the column "low":
B = A(A.low<0,:);
>> whos B
Name Size Bytes Class Attributes
B 5014x3 121662 table
now make a new table, where all values (high and low) are <0:
C = A(A.low<0 & A.high <0,:);
>> whos C
Name Size Bytes Class Attributes
C 370x3 10206 table
Best regards
Stephan
