How to convert string to float

For a start, w1 etc are symbols not strings. It's very unclear what you actually want to do - how would you convert w2 to a float?

Please describe more clearly what you actually are trying to do. I can't figure it out, and I'd be surprised if others can.

Regards,

Andrew.

I am writing code for a pcell......i showed some part of the code.

In the parameters part of the pcell code is defined like w2 to w25 as strings.I have to give the values in string(ex: "2.0u").But in the dody of the code all operations are done using w2 to w25 as float values(ex: 2.0).

To link both of these i want to convert all strings  (w2.....w25) values to flaot values.

Regards,

K.srikumar.

The bit you showed looks more like creating the argument to dbCreateParamInst(), rather than the pcell code itself. I'm assuming that you want to do this conversion in the underlying pcell code? If so, it would be something like:

let((varName)
  for(i 2 25
    varName=concat('w i)
    set(varName cdfParseFloatString(symeval(varName)))
  )
)

Then any variables w2 through to w25 within the pcell code will have float equivalents of the strings passed in.

Best Regards,

Andrew.

Hi,

I tried your thing ........it doesnt work.......so i split your steps into small steps  and then tried it.

w1 is defined by using for loop.......using above what ever i sent a example. 

varName=concat('w 1)

symeval(varName)

cdfParseFloatString(symeval(varName))..............This command is failling

Regards,

K.srikumar.

Hi,

My main intension is........

Well, if you will post irrelevant parts of your code, it's hardly surprising if you get responses that don't solve your problem.

I'm still having to guess, and given that this is not an official support channel (it's just volunteers here, and others in the community that help out - I do this in my spare time - it's not part of my job), bear in mind that having to keep guessing reduces the likelihood that I'll answer your questions in future (sorry to be hard, but I have limited spare time).

Most likely what you need is:

Width =  cdfParseFloatString(get( cv~>parameters concat( 'w i ) )) - 2*cainwell

but since you've not given enough of your code, it's hard to be sure. In your first paragraph, you say that w2 to w25 are strings. Well, they're not - presumably the pcell property called w2 to w25 is a string? It's really had to tell, because that is not normally how you retrieve pcell parameters within a pcell.

Anyway, I'm not going to guess any more. Hopefully I got lucky.

Andrew.

I can understand.....what you mean.

But if i want to give you full code.......it is like some 600 line code and it calls so many other procedures.

So, i thought .....instead of giving that much big code .........i given part of the code where is the problem.

Yes , you are in right spot.

But used it Width =  cdfParseFloatString(get( cv~>parameters concat( 'w i ) )) - 2*cainwell ...

But it is not working.

I think cdfParseFloatString is not converting it.

Regards,

K.srikumar.

Hi Andrew,

Thank you for your support..........

I solved my problem ......by creating simple procedure.

procedure( StrToNum(arg)

    if(eq(type(arg) 'string) then
       atof(arg)
    else
       sprintf(nil "%L" arg)
     )
    )

and then i called the procedure

Width =  StrToNum(get( cv~>parameters concat( 'w i ) )) - 2*cainwell

I got this idea from your idea only........Thank you.

Regards,

K.srikumar.