Question

Matlab: organize a great number of data based on month, day and hourly intervals
Hi! I have a problem and I'm not able to find a smart solution. I explain it in short: I have a great number of user's sequence ...

8 years ago | 1 answer | 0

Question

convert array in matrix
Hi! I want to trasform the cell arrays attached in a matrix, can you help me?

8 years ago | 1 answer | 0

Question

trasform from a cell array into a matrix
Hi! I want to represent the values in pairs (attached) in a matrix A = [ 21714 1067829 ''; 21714 18417 ''; 21714 9241 ...

8 years ago | 1 answer | 0

Question

how to find values and following values in a struct
Hi! I have a struct Interval (attached), that cointained region's location_id, visited by a user in a different days (31) and in...

8 years ago | 2 answers | 0

Question

how to find interval of data
Hi! I have a dataset of trajectories of users: every current location of the traiectories has these fields:_ [userId year month...

8 years ago | 1 answer | 0

Question

create a struct based on user id
Hi! I have a set of location records called LocationRecords = [usersID, years month, day, hour, minuts, seconds, latitude, lon...

8 years ago | 1 answer | 0

Question

how delete the '-' in front of numbers in a matrix?
Hi, I have this matrix A=[2010 -10 -19 23;2010 -10 -18 22;2010 -10 -17 23;2010 -10 -17 19]; how can delete the '-' in fron...

8 years ago | 1 answer | 0

Question

Read .txt file in matlab and save date
Hi! I have a file .txt with this data: user check-in time (year-month-day hours) latitude longitude locat...

8 years ago | 1 answer | 0

Question

How to Speed up code
Hi, I have this code: I have a number of user and for all of them I want to find the id of locations that they have visited, the...

8 years ago | 1 answer | 0

Question

delete a struct in a struct array
hi! I have the struct array a |1x3|, I want to delete all the struct in the struct array in which the fields places and locs are...

8 years ago | 1 answer | 0

Question

How remove empty spaces
Hi, I want to remove the spaces from s; how can I do? s={[2005 1 26;2005 1 27;2005 1 28]}

8 years ago | 1 answer | 0

Question

how delete empty fields in a struct
Hi! I have a struct (attached) and I want to delete the empty field, how can I do?

8 years ago | 1 answer | 0

Question

Speed up code to compare fields in a struct
Hi! I have the struct Trajectories with field uniqueDate, dateAll, label: I want to compare the fields uniqueDate and dateAll a...

8 years ago | 2 answers | 0

Question

sum values in a cell array
Hello! I have a={0.006;0.45;0.1;0.23;0.12} and I want to sum all the values in a, how can i do?

8 years ago | 2 answers | 1

Question

find combination of labels
Hello! I describe the view of my problem: I have an user that visit same locations. This location are indicated like A=[6...

8 years ago | 3 answers | 0