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Hello Berk,

To accomplish you task you have to loop through the values of the input vector; to do this you can use the function vectorize(...) or a loop (for(...), while(...));

vectorize:


loop:

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Two quick observed bobos: YR is not digestible and unit problem
Always plot before "I want this, I want that"


Jean

en 1991-4.sm (346 KiB) downloaded 39 time(s).

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It is working with the vectorize function but why it should be like that? I couldn't understand. For example variable "a" has values when you press equal without any vectorize function.

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It is working with the vectorize function but why it should be like that? I couldn't understand. For example variable "a" has values when you press equal without any vectorize function.

In SMath while you are working with matrices "raise to power" it is a shorthand for matrix multiplication/inverse multiplication -> it works just when the exponent is an integer;

moreover when matrices are vectors (column matrices), instead of giving an error because dimensions of matrices are wrong, a special feature allows to the product to be the "dot product" (thus vector^power is the sum of its elements each one raised to power's value);

To apply scalar math to matrices/vectors you have to use vectorize(), programming (loops) or also you can use systems - sys(..) function.

• define again a or z, define again Y.R
  
• define Y.R as a function: Y.R(a) or Y.R(z)
  
• define Y.R before defining z or a -> each time you call Y.R, the last value you define for these parameters will be used
  

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There are several ways:

• define again a or z, define again Y.R
  
• define Y.R as a function: Y.R(a) or Y.R(z)
  
• define Y.R before defining z or a -> each time you call Y.R, the last value you define for these parameters will be used
  

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This should works:

en%201991-4(3).sm (596 KiB) downloaded 42 time(s).


BTW, it is even possible to move the vectorize() function from the definition to the point where you need to use it

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Berk,
that's because of the order of declarations in your file. Please notice that Davide defined formulas first, and later defined the variables that constitute the formulas. This way, when the formulas were defined, the meaning of its constituents was undefined, so it stayed as is: names. When later below, after all variables were set, you tried to get the Y.R value, SMath took the formula for Y.R, substituted all variables in it with their already-known values, and gave you the result for this set of values. After that, you re-defined some of variables, tried to get answer, and SMath repeated substitution in the formula, giving you the new answer.

But in your file, you define variables first, then define formula for Y.R. This way, at the Y.R definition, SMath already knows all variable values, so it stores them in the Y.R definition instead of their names. All later modifications of those variables won't have impact on what is inside the Y.R, so you won't see new results.

But you may use functional syntax instead, something like

Y.R(z):vectorize(1-(({z-h.o}/{z.o-h.o})+1)^n)

, to be independent on the declarations order.

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But it couldn't calculate the results now with range.en 1991-4 (z).sm (602 KiB) downloaded 35 time(s).

1. Set n optimization to numeric on his definition (possible issue on exponentation of unit to check from smath side)
   
2. You have renamed Y.R to Y.r (lowercase) - restore it (there's no name's conflict between functions and variables) or update the name inside the definition of p.hf

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But it couldn't calculate the results now with range.en 1991-4 (z).sm (602 KiB) downloaded 35 time(s).

About your latest attachment:

1. Set n optimization to numeric on his definition (possible issue on exponentation of unit to check from smath side)
   
2. You have renamed Y.R to Y.r (lowercase) - restore it (there's no name's conflict between functions and variables) or update the name inside the definition of p.hf

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I have put two files tiled and screenshoted. As you can see all the things are same for both files (left is yours). But mine is not computing. I have just written the explanations of the variables only.

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1. Set n optimization to numeric on his definition (possible issue on exponentation of unit to check from smath side)

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I have put two files tiled and screenshoted. As you can see all the things are same for both files (left is yours). But mine is not computing. I have just written the explanations of the variables only.

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1. Set n optimization to numeric on his definition (possible issue on exponentation of unit to check from smath side)

• if this variable is already defined, his value will be replaced and stored in the definition
  
  
• if the variable is not yet defined, the variable name will be stored