Importing a text file and then using "counting" approach

I am trying to import a text file into matlab. I tried using the following: A=xlsread ('temperature. txt')

Once I am able to import the data, I want to observe several different time intervals using a for loop (is this a counting approach) to record the frequency of the readings. I am given 7 different time intervals:

0 < t< 30

30<t<80

80<t<130

130<t<150

150<t<180

180<t<200

t>200

I am unsure how to put a less than or equal to sign in correct format ( basically I am trying to say that t is greater than or equal to zero but less than or equal to 30).

Do i have to write a for loop for each time point or is there a way to include all time intervale in one for loop to determine the frequency.

Answer 1

[Sean de Wolski]

How about using histc() or hist()? These will count for you :)

[KayLynn]

that may work but i still am unable to get my text file imported into matlab....any suggestions for that

[Sean de Wolski]

Use the import tool. From the Home Tab select the fourth button in "Import Data". Then make any adjustment you need to inside of this tool.