convert an array of strings into a single string

[Ashley.w]

Hi

I am having trouble trying to figure out how to convert an array of strings into a single string.

I am taking serial data via serial read in a loop to improve data transfer.  This means I am taking the data in chunks and these chunks are being dumped into an array.  However I want to combine all elements in the array into a single string (should be easy but I can't seem to make it work).

In addition to this I would also like to then split the string by the comma separator so if any advice could be given on this it would be much appreciated.

Many Thanks

Ashley.

[K C]

Hi Ashley,

You can do it all with the function 'Array to Spreadsheet String'

[Ashley.w]

Thanks KC 

For some reason I had assumed that the array to spreadsheet string could only deal with an array of numeriuc inputs.

Ashley

[K C]

Well the input shows a DBL array but you can attach a string array.   Just something you have to know.

[Ashley.w]

Hi again KC

Sorry to be a pain.  Using the array to spreadsheet string worked fine, however, when I am having trouble rearraging the string back into an array in which each element is a a sub-string contained between coma separators.

i.e. I would like the string xxxx, xxxx , xxxx, xxxx etc.... to be rearranged into an array:

1    xxxx

2    xxxx

3    xxxx

4    xxxx

      etc.....

The reason is the each coma separated sub-string is a hexadecimal word.  If each word is arranged in an array like this I will be able to convert each to a decimal number in a for loop and hence pull out the data I need.

incidentally many thanks for your help on the problem I was having reading serial data.  That is cured now I attach the modified code for your reference.

Many thanks

Ashley.

[chilly_charly]

You don't even have to use a For loop : the string convert vis run on arrays...

See the attached vi.

[K C]

Hi Ashley,

Everything clear, I think, with the answer of CC ?

[Ashley.w]

Yes thank you, all was good with Chilly Charley's message.

Just one thing.  I seem to have a recurring empty sub-string in the string I am reading.  When converting from hexadecimal text to decimal numbers this empty string is being returned as 0.  Thus in my numerical array output I have intermittent zeros (which aren't real data). Is there any quick fix to remove the empty string character from the read string so I don't get these zeros

Many thanks for your patience

Ashley.

[altenbach]

Well, you don't even need to create the intermediary string array, right? This does exactly the same as CCs attachment:

Back to your serial code:

Why don't you built the array at the loop boundary? Same result.

You could even built the string directly as shown here.

Message Edited by altenbach on 12-20-2005 09:39 AM

[tbob]

You could test the string lenght using the String Length function.  Put your code to convert the string to a number inside a case structure.  Wire String Length to the Greater Than Zero function (>0).  Wire output of >0 to case selector.  Convert string to number only if string length is greater than zero (True case).  Do nothing in False case except passing the array untouched.