void setup() function doesn't seem to change User settings

[anuragpareto]

I have tried changing this line in header:

void setup(byte powerLevel = 0x1F, byte sampleAverage = 4, byte ledMode = 3, int sampleRate = 400, int pulseWidth = 411, int adcRange = 4096);

For different Sampling rate and Averaging
But, It always gives 4 samples with same value and same number of data samples in a second.

For instance, it always follows this pattern:

14:14:28.371 -> 201
14:14:28.371 -> 201
14:14:28.371 -> 201
14:14:28.371 -> 201
14:14:28.371 -> 214
14:14:28.411 -> 214
14:14:28.411 -> 214
14:14:28.411 -> 214
14:14:28.411 -> 261
14:14:28.411 -> 261
14:14:28.411 -> 261
14:14:28.411 -> 261
14:14:28.411 -> 286
14:14:28.445 -> 286
14:14:28.445 -> 286
14:14:28.445 -> 286
14:14:28.445 -> 229
14:14:28.445 -> 229
14:14:28.445 -> 229
14:14:28.482 -> 229
14:14:28.482 -> 186
14:14:28.482 -> 186
14:14:28.482 -> 186
14:14:28.482 -> 186
14:14:28.482 -> 210
14:14:28.482 -> 210
14:14:28.482 -> 210
14:14:28.525 -> 210

As you can see, it always repeats 4 values like above 210, 186 etc.
Which results in flat lines on graph.
Another issue is if I try to change Sampling rate, it still gives same number of data samples.
Like from 14:14:28.411 to 14:14:28.482, it gives 22 samples, which makes it 22x10 = 220/Sec approx
Even though, I chose 1000 sampling rate.

Is there anything I am missing here?