accessing a .csv file

1. Opened a .csv file in Excel
2. num = xlsread (filename.csv)
3. The required data is listed in the command window (790 rows and 6 columns)
4. When I try to use the array of data in the following function call I receive an error: Undefined function or variable 'num'.
5. run dataSplitter(num, integer1, integer2, integer3)

what am I doing wrong?

[Wouter]

the variable

num

does apparently not exist; what happens if you type:

   whos num

after step 2?

[Bob Matthews]

 Name        Size            Bytes  Class     Attributes

num       790x6             37920  double

Answer 1

[Image Analyst]

Even though num is not null after step 2, it apparently is not defined by the time you get to step 5. Is step 5 in the same function as step 2? If not, see the FAQ for info on how to make the function that calls step 5 see the num from step 2.

[Bob Matthews]

I do not understand your question ?

I tried the following without success..........

save(fullMATdiffSet, 'num.csv') Undefined function or variable 'fullMATdiffSet'.

[Image Analyst]

Please watch this: debugging tutorial so you know how to check the values of variables. You will see that the variables you are trying to pass do not exist yet, at least not in that function. Each function has its own private workspace. Variables are not global by default. Set a breakpoint there and examine fullMATdiffSet when it stops at the breakpoint.

[Bob Matthews]

thank you