The description of this problem is not very clear. It's really asking for the first and last row for each unique value in the first column.
"However there will be more than one row index and that makes this question challenging." - that really explains nothing to me
Read a Soroban Abacus
Whether the input is vector?
Determine Whether an array is empty
How long is the longest prime diagonal?
How many monitors are connected ?
Integer to boolean
Check if the input is an interprime
Longest Sequence of NaNs
Calculate trends in time series
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office