'nblocks' in assessStationarity and warning messages

[cassie95]

Hello,

Could you further explain what does 'nblocks' mean in this function assessStationarity(sequence, nblocks)?

When I input the code below in R, it gives me 3 warning messages. I want to know what should I be acknowledged by these warnings?

`>assessStationarity(sq,10)
The assessStationarity test statistic is: 5.095576 the Chi-Square d.f. are: 54 the p-value is: 1
$statistic
[1] 5.095576

$p.value
[1] 1

Warning messages:
1: In chisq.test(mat) : Chi-squared approximation may be incorrect
2: In chisq.test(mat) : Chi-squared approximation may be incorrect
3: In chisq.test(mat) : Chi-squared approximation may be incorrect`

Thanks!

[ghost]

I would also like help with this please.