I have a multimeter program that measures resistance and feeds the data into and exel file. I need to modify the program to get the real time slope of the data and plot a graph simultaneously. Plz help. Very urgent !!

[Dennis_Knutson]

"Very urgent !!"

Use the Linear Fit function. Wire the Chart History to it or use the Linear Fit PtByPt with the single value you are acquiring.

[tbob]

First of all, you should put a very short message in your post title, like need help with measurement.  Then ask you question in the body of the post.

Now to help you.  Your attachment has two missing subvi's.  One of these must take measurements from the multimeter.  It looks like the measurements are in the form of a string.  You need to use Fract/Exp String to Number function to convert the string type to a numerical type.  This needs to be done for each measurment.  Then you can calculate the slope using the numerical data.  You can use Build Array to build an array with the data, and then feed this data into a graph.

[smercurio_fc]

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tbob wrote:

First of all, you should put a very short message in your post title, like need help with measurement.  Then ask you question in the body of the post.

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Must be a friend of ZAREEN.

[tbob]

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smercurio_fc wrote:

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tbob wrote:

First of all, you should put a very short message in your post title, like need help with measurement.  Then ask you question in the body of the post.

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Must be a friend of ZAREEN.

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Maybe they are room mates.