plotting normalized auto-correlation using matlab











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I have a problem due to plotting auto-correlation. Firstly, x is a vector contains random length observations of light readings. All the values of this x vector ranging from 0 to 250 randomly and collected using the light sensor for a period of 1 minute (60 seconds). I want to compute the auto-correlations between the values for 60 lags as in this equation.





Then, I want to compute the normalized auto-correlation values using this equation.



enter image description here



I tried to do this using Matlab code as following, but it not working with me:



Code:



[acf,lags,bounds] = autocorr(x,60, );


My output:



enter image description here



Could anyone help me?






matlab correlation







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  • 2




    Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
    – hazeiio
    Nov 8 at 10:13










  • @hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
    – Mohsen Ali
    Nov 12 at 1:41















up vote
0
down vote

favorite












I have a problem due to plotting auto-correlation. Firstly, x is a vector contains random length observations of light readings. All the values of this x vector ranging from 0 to 250 randomly and collected using the light sensor for a period of 1 minute (60 seconds). I want to compute the auto-correlations between the values for 60 lags as in this equation.





Then, I want to compute the normalized auto-correlation values using this equation.



enter image description here



I tried to do this using Matlab code as following, but it not working with me:



Code:



[acf,lags,bounds] = autocorr(x,60, );


My output:



enter image description here



Could anyone help me?






matlab correlation







share|improve this question




















  • 2




    Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
    – hazeiio
    Nov 8 at 10:13










  • @hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
    – Mohsen Ali
    Nov 12 at 1:41













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have a problem due to plotting auto-correlation. Firstly, x is a vector contains random length observations of light readings. All the values of this x vector ranging from 0 to 250 randomly and collected using the light sensor for a period of 1 minute (60 seconds). I want to compute the auto-correlations between the values for 60 lags as in this equation.





Then, I want to compute the normalized auto-correlation values using this equation.



enter image description here



I tried to do this using Matlab code as following, but it not working with me:



Code:



[acf,lags,bounds] = autocorr(x,60, );


My output:



enter image description here



Could anyone help me?






matlab correlation







share|improve this question















I have a problem due to plotting auto-correlation. Firstly, x is a vector contains random length observations of light readings. All the values of this x vector ranging from 0 to 250 randomly and collected using the light sensor for a period of 1 minute (60 seconds). I want to compute the auto-correlations between the values for 60 lags as in this equation.





Then, I want to compute the normalized auto-correlation values using this equation.



enter image description here



I tried to do this using Matlab code as following, but it not working with me:



Code:



[acf,lags,bounds] = autocorr(x,60, );


My output:



enter image description here



Could anyone help me?






matlab correlation




matlab correlation






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 8 at 2:44

























asked Nov 8 at 2:00









Mohsen Ali

6219




6219








  • 2




    Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
    – hazeiio
    Nov 8 at 10:13










  • @hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
    – Mohsen Ali
    Nov 12 at 1:41














  • 2




    Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
    – hazeiio
    Nov 8 at 10:13










  • @hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
    – Mohsen Ali
    Nov 12 at 1:41








2




2




Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
– hazeiio
Nov 8 at 10:13




Can you provide the rest of the code you used for plotting and calculating the normalized autocorrelation?
– hazeiio
Nov 8 at 10:13












@hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
– Mohsen Ali
Nov 12 at 1:41




@hazeiio , unfortunately, I do not have a code, I am looking for a code to represent a normalized auto-correlation function on a vector of random time series values. Could you help me how I can do it using Matlab?
– Mohsen Ali
Nov 12 at 1:41

















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