Max difference in a table column

PLS HELP! Error!

I've got a table with about 20 numeric values seperated by different rows in one column. I would like to find the largest difference between each one (in order) and then select the largest difference.

so basically, how can I go through each row and subtract the previous row from it? and keep the largest value

EDIT: this is what i have and it works but...

myMax = -Inf

for i= 1:20
    
    cNum = abs(t.Distance(i+1) - t.Distance(i))
   
    if cNum > myMax 
  
        myMax = cNum
    end
end

keep getting an error of:

Index exceeds the number of array elements (20).

Error in tabular/dotParenReference (line 114)

b = b(rowIndices);

Error in maxSegmentLength (line 20)

first = t.Distance(i+1)

not sure what to do!

Answer 1

[Walter Roberson]

cNum = max(diff(distanceCol));