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display result (numbers)

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Nadya el 30 de Jun. de 2020
Comentada: Nadya el 2 de Jul. de 2020
I have a problem in displaying result.
I have this equation :
ps1=((max(max(X1))-mean(mean(X2)))/ (std2(X2)));
Normally, the result is for example '7.473958' but it is displayed '8' !!!
what is the problem please ?

Respuesta aceptada

Steven Lord
Steven Lord el 30 de Jun. de 2020
When you take the max of an integer array, the result is of the same integer type.
When you take the mean of an integer array, the result is (by default) double precision.
When you perform arithmetic on an integer array and a scalar double precision value, the result is of the integer type. See the "Arithmetic Operations on Integer Classes" section on this documentation page.
Convert the output of max from an integer type to double using the double function before you subtract the mean from it.
  1 comentario
Nadya el 2 de Jul. de 2020
Thank you so much ! problem solved !

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Rafael Hernandez-Walls
Rafael Hernandez-Walls el 30 de Jun. de 2020
intent with the format command
format long
  1 comentario
Nadya el 30 de Jun. de 2020
Thank you for your answers
I tried this, but this is not the problem, because in the same program, I calculated other parameters, and they are displayed with the real long format. Just for this parameter, the results are converted and displayed in integer numbers (uint8).

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