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Plot to determine randomness in data set

5 years ago in Data Analysis By Meera


All Answers (4 Answers In All)

By Vipul Answered 5 years ago

Correlograms is the right plot here.


By Shubham Answered 5 years ago

It presents a correlation between two variables. It also offers graphical assessment of temporal dependence.  


By Natasha Answered 5 years ago

Correlograms is plotted by taking time lags on x-axis and correlation on y-axis. If the data is random,  then the autocorrelation value must be near zero for all time lags. If it is non-random then one or more autocorrelation will be non-zero.


By Babita Answered 5 years ago

Autocorrelation is determined using the formula,rh=ch/cO. Here ch autocovariance function and cO is variance function.  


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