read and average n data from text file

[krivan]

I acquire numeric data from the oscilloscope [reading a waveform] that is stored in one column in a text file.

I need to read in selectable amount of data points to average/plot them.

So basically I wanna have a text file with millions of data points but I wanna plot say only every 1000. data point. I have tried many things I found here on the forum but as I am new to LabView, none of them really worked.

Does anybody have a suggestion.

Thanks.

[DBerry]

Have you tried reading in the data using the "Read from Spreadsheet File" function (from the file I/O palette)?

Once you have the data in an array it should be pretty straightforward to use the plethora of array functions to accomplish what you need.

Dan

[RavensFan]

Read in a thousand data points using the read file functions, average, then plot.  Repeat.

What things did you see and try, but did not work?

[krivan]

Hi,

among others I have tried to build the VI below but somehow I cannot get to the desired solution because according to the indicators it always stops after the first loop.

Can you have a look please?

Thanks.

[srikrishnaNF]

hi krivan,

 If your data file is a simple text with only one column of data,you can use a simple read text file vi ,configured to read lines and count as 1000(everytime) and use some string to integer functions and calculate the average/mean.

Thannks and regards,

srikrishnaNF

[krivan]

Hi,

I have changed the code I use read from spreadsheet but something is still wrong and cannot really figure out what...

[srikrishnaNF]

hi ,

 can you please attach your data file?

Thanks and regards,

srikrishnaNF

[krivan]

hi,

the data file:

[srikrishnaNF]

Hi,

 sorry for the mistake..what i mean to attach the text file from which you are reading the values.

Thanks and regards,

srikrishnaNF

[krivan]

Again...