Unwanted zero plotted in waveform chart

[xlab488]

I am getting 3 values plotted on a waveform chart when using values from a 1D array with 2 elements. The 3rd value is a constant zero. I've attached screenshots showing this problem in a minimal example. Does anyone know how I could remove this zero value?

[Michael_78]

Right click the Array to Cluster and select Set Size.  It is probably 9, and you want it to be 2.  

[Minions]

Before your waveform output, you have an array to cluster.  Under properties, what is the size of the cluster?  I am going to guess that it is set to 3  <default is 9>.

[GerdW]

Hi,

replace the ArrayToCluster function by a simple BuildArray!

This way the whole code becomes scalable… 😄