Questions on graphs and charts.,,,

Hi ,
I have always been facing problem while working with graphs and charts. First of all let me be clear with the data these accept. further questions as under:
1. If I wire an array (1-dimention) to graph/chart , it plots it on Y axis. In this case, what are the values on x.axis?
2. If I want to acquire a voltage on Analog I/P channel for some specified time , say 2 sec., how to ensure that time span and data without missing anyone.
3. If I have to plot an I-V plot, how to make sure that V will come on Y-axis and I will come on X-axis.
Plz clear these doubts...
Regards
GNS

Hi,
1. Charts takes sigle point value like plotting DC voltages, Graph takes set of values like arrays (1D) which are plotted on Y-axis with respect to x axis which is integer number like 0,1,2..etc.. ,
XY graph takes bundled array of X-axis & Y axis.
2. Charts are used where a single point value is to be presented/updated w.r.t. to time or x scale (x scale can also act an index).
Also it supports update modes like sweep, scope & strip.
3. Graph are used to plot waveforms which does have no. of samples acquired from DAQ board or other source, which needs to be plot on Y-axis.
Main inputs of waveforms are starting time (t0), time stpes(dt) & Y elements.
4.X-Y graphs are used where you want to plot Y elements w.r.t. to the defined X eleme
nts. For e.g. I want to plot as
Y=10 when X = 0
Y=20 when X = 2
Y=30 when X = 3
etc.
Here we have one array of Y elements & other array of X elements. So bundle your X & Y array & fetch to XY graph to plot it.
Hope it clears you the concepts. Your feedbacks are welcome.
Best Regards,
Nirmal Sharma
India

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