Chart Node problems

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1

Hi,
I have two questions regarding the Chart node:

  1. I'm using a chart to display pH and would like to display on the
    Y-axis the range from 0 to 14 in steps on 1 .I've entered in the Chart node Y-axis min= 0 and the max =14. but the chart displays uneven steps: 0,3.5,7,10.5 and 14 . How do I control the Y-axis steps?
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flow1
ph chart

  1. I'm saving the chart data to a global var. (I'v changed the settings.js file to save the var. on the disk) I have about a month of data and I like to display a specific date using the Date picker Node.
    Please help me with the code.

kind regards,
Ki-Va.

2

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