# Frequency vs time domain

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Hey guys out there

i need help >< i want to plot frequency against time domain but what i can only get is the individual time and frequency plots. how do i plot them? its in Real time by the way. All help will be much appretiated you wrote:

i want to plot frequency against time domain but what i can only get is the individual time and frequency plots. how do i plot them? its in Real time by the way. All help will be much appretiated 4332[/snapback]

I do not understand what you mean by 'frequency against time domain'. Do you want to plot a Signal S in dependence on frequency, S(f), and the same (or another) Signal in dependence on time, S(t), in one plot? That would make little sense, since the x-axes of the plot would be two different quantities.

Hey there,

What i meant was to plot Frequency in the Y-axis against Real time in the X-axis. instead of the normal Amplitude vs Frequency for the frequency graphs, it is shown in Real time any idea?

Allow me to increase my post count by suggesting that you start with an XY Graph with Time values on X-axis and Frequency values on Y-axis.

Hey there,

What i meant was to plot Frequency in the Y-axis against Real time in the X-axis. instead of the normal Amplitude vs Frequency for the frequency graphs, it is shown in Real time any idea?

4340[/snapback]

Since frequency f is defined as events per time ( f = 1/t) you would get a hyperbola if you plot y (= f = 1/t ) vs. x ( = t ). What is so interesting in plotting a hyperbola?

hi guys

Yea i need frequency against time for data analysis. How do i make it work if i am working with real time with everchanging values. i cant just simply put in fixed values in this situation. I can plot a normal signal in both time and frequency but how do i plot frequency against time.......

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