dynamic array sizing

[landrover77]

I would like to be able to size an array (vector) by means of a variable.

Essentially i have input data that i input into a number of vectors, the number of data points, ie rows changes each time, however i can't afford to have blank / zeros due to subsequent calculations.

I'd like to be able to set a variable "temp" = 10, in the case of 11 data points,
then size array1 and array2 to have rows 0-10.
finally display the newly sized vectors to allow data to be input.

Alternative i'd like to input the input data into two variables, then create a vector for each from them (Array1 + Array2)
then check i have the same number of rows in both.


thanks in advance

 

[davidbeach]

MathCAD has no problems with dynamically sized arrays. I don't have access at the moment to verify how I did it, but I don't think you even have to declare the size, just store the values.

 

[IRstuff]

Mathcad does not require pre-sizing of arrays; in fact, there is actually no way to even do that. You can use functions like rows() and cols() to find out what the current size of the array is.

TTFN
faq731-376

 

[jmcoope3]

You can slap on "filterNAN" or a crafted If/Then statement in there and eliminate the issue with 0's and empty cells.

Either that or you can port you data directly into a nested excel (import->component->excel-> read the help file because this gets weird)and manipulate the data in a friendlier environment.

 

[jmcoope3]

I know its not the prettiest of worksheets, but the attached should allow you to manipulate the length of a vector and give you options on how to remove NaN or Error cells.