First of all I'm new to SMath and I want to say how impressed I am with its capabilities. My company has subscribed to MathCAD and I've used if for about 4 years. I do all my engineeging calcs with MathCAD. However, the cost prohibits me from using it at home.

Now that I've found SMath I have an alternative.

I've been playing with the rfile wfile plug ins and finally figured out, in Windows 7 the files go to the directory C:\Users\****\AppData\Roaming\SMath\user. Where **** is the current user's name. Under previous versions of windows this used to be under "Documents and Settings" Any way the syntax is:

wfile(x,filexx)=1 will write a file in the above directory with the name "filexx". No quotes on the file name. You can't enter a quoted string for file name.

y:=rfile(filexx) will read back the file from the above directory with name "filexx"

For importData is goes like this:

z:=importData("c:\users\****\appdata\roaming\user\filexx",0,0,0,0,5,0,6,1)

This works for a comma delimited file with 5 rows and 6 columns and nonsymbolic data.

Somethings wrong with exportData it says "function is not defined".

Hello and sorry for waiting.

wfile, rfile and dfile functions are not designed to work with importData function. SMath Studio will have two ways to work with external files: 1) importData and exportData (not implemented yet); 2) wfile, rfile and dfile. When exportData would be implemented, then wfile, rfile and dfile will be obsolete.


This error appears because I didn't test this function with English settings of delimiters ('.' as Decimal Symbol and ',' as Arguments Separator) before 0.88 release (my fault) - with ','/';' you could see correct work of importData function. This error is fixed.

Regards, Andrey Ivashov.

importData(..) created especially to handle Mathcad output data files, they have spaces or tabs as column delimiters and dots as decimal symbols. The final realization of this function like you can found in SMath Studio 0.88 was a bit changed for these purposes, so the screenshot from http://en.smath.info/for...t.aspx?g=posts&t=372 is obsolete now. In your test you need to specify the last argument of the importData function as 1 - which means that data is symbolic (Mathcad doesn't support such data export). Maybe separators should be specified also.

Here is updated pic.

Edited by user 18 July 2010 18:17:05(UTC)  | Reason: Not specified

Andrey,

I notice a peculiar behavior of importData. I'm not sure if it's what you intended.

The first import function produces the results shown. I then introduce a variable a. I then duplicate the import function. Then I went and edited the file test2.csv. I came back to SMath and changed the value of a. The second import statement now shows the new values from the file. Notice the lower right hand value in each matrix.

This exercise was intended to show that each time something above the import function is changed the import function reruns. Maybe not something you want to have done for speed and efficiency. Any way to prevent a function from rerunning?

Okay. Now I understand.

Hello TomG and welcome

Yes, this was a known bug in v0.89 when you use different characters for function arguments then the one which is required. Please use the recent beta 0.89.8.
SMath is multiregional and multilingual oriented, and you have the option to change the characters for the decimal symbol and function arguments separator. Just check the Tools|Options|Interface and Decimal symbol and Arguments separator.

Regards,
Radovan

Hello
Help with Importdate (9)
I want to upload a matrix for the graph in smath. I use the format tsv. I use ";" as a separator. Decimal symbol ",".


What am I doing wrong with import date (9)?

Why I export a matrix with two columns
And I import with one column?
What is the best way to use to import data?