motu_line = sprintf("py -m motuclient --motu https://nrt.cmems-du.eu/motu_web/Motu", ...
" --service-id ", serviceId, "-TDS --product-id ", productId, ...
"--longitude-min ", lon(1), "--longitude-max ", lon(2), ...
"--latitude-min ", lat(1), "--latitude-max ", lat(2), ...
" --date-min ",date_start," --date-max ",date_end, ...
" --depth-min ", depth(1), " --depth-max ", depth(2), ...
variables(1), ...
" --out-dir ", out_dir, " --out-name ", filename, ...
" --user ", username, " --pwd ", password);
No format characters such as %s in the first parameter to sprintf. The sprintf() is not going to output any of the additional parameters you pass.
The format for sprintf() is sprintf(FORMAT, param1, param2, param3, ...) where the FORMAT specifies how to convert param1 and so on into output. Each % in FORMAT causes the processing of the next param* (with the exception of %$ sequences) .
When the end of FORMAT has been reached, and there were no % format characters, then sprintf() makes no effort to convert any additional parameters and just drops them.
If the end of FORMAT has been reached and there is at least 1 % sequence, and there are additional values to convert, the FORMAT gets reused from the beginning.
In all situations if a % format sequence requires a value and there are no more values to convert, conversion stops at that point. For example, sprintf('abc %g def %g hij\n', 10 ) would output abc 10 def and then would encounter the %g for which there is no corresponding input value, so it would just stop without going on to hij
motu_line = "py -m motuclient --motu https://nrt.cmems-du.eu/motu_web/Motu" ...
+ " --service-id " + serviceId + "-TDS --product-id " + productId ...
+ "--longitude-min " + lon(1) + "--longitude-max " + lon(2) ...
+ "--latitude-min " + lat(1) + "--latitude-max " + lat(2) ...
+ " --date-min " + date_start + " --date-max " + date_end ...
+ " --depth-min " + depth(1) + " --depth-max " + depth(2) ...
+ variables(1) ...
+ " --out-dir " + out_dir + " --out-name " + filename, ...
+ " --user " + username + " --pwd " + password;
but if so then you should test to see whether the conversion of lat and lon to string is acceptable for your purposes -- the automatic conversion will only hold on to at most 4 decimal places.
