Wavelet Packet decomposition using CSV data file.

Hello guys,i'm trying to analyze this data using wavelets but changing the sampling frequency does not effect the result and it always gives the same analysis so i cant identify the frequency components of the data.

How can i associate the sampling frequency with the time of the data.

Any help is appriciated.

data=csvread('Datatest.csv',4);
time=data(:,1);
x=data(:,2);
fs = 1000;
level = 4;
wpt = wpdec(x,level,'db4');  
plot(wpt)

figure;
grid on;
hold on;
[Spec,Time,Freq] = wpspectrum(wpt,fs,'plot');
xlabel('Time (secs)')
ylabel('Freq (Hz)') 

[malik elfarsi]

@Star Strider