For loop issus caused by unbalanced group number

Modeling
1

Hello,

I have a question about for loop. Since I have different area s and for each area, it has different amount of residents n_s. So I record the starting number and ending number of each area into two separate vector. And call them in the for loop.

The for loop structure like:

for (k in 1:s) {
		for (j in 1:n_s){
			int index = k*n_s-n_s+j;
# compute the posterior

So mine is:

for (k in 1:s) {
		int start_point = starting[k];
		int end_point = ending[k];
		for (j in start_point:end_point){
			int index = j;
# compute the posterior

And for starting and ending:

data {
	int s;
	int N;
	vector[s] starting;
	vector[s] ending;
}

I receive the error message as:

SYNTAX ERROR, MESSAGE(S) FROM PARSER:

variable definition base type mismatch, variable declared as base type: int variable definition has base: real  error in 'model33908d47a8_tweedie' at line 62, column 37
  -------------------------------------------------
    60: 	// likilihood of tweedie distribution
    61: 	for (k in 1:s) {
    62: 		int start_point = starting[k];
                                            ^
    63: 		int end_point = ending[k];
  -------------------------------------------------

Error in stanc(file = file, model_code = model_code, model_name = model_name,  : 
  failed to parse Stan model 'tweedie' due to the above error.
In addition: Warning message:
In readLines(file, warn = TRUE) :
  incomplete final line found on

What should I do to solve this problem? Thank you very much for your help in advance.

With appreciation,

Tairan

2

Both starting and ending should be declared as integer arrays in the data block, as in

data {
  int s;
  int N;
  int starting[s];
  int ending[s];
}

But trying to do a Tweedie likelihood with an unknown shape parameter is going to be painful.

3

Thank you very much for your help, Ben. The reason why I made this mistake is because I didn’t distinguish the vector of real and the vector of integers.

That is my research topic. So I can’t find any other way out. I have to work on it…= = So far not that bad.