Re: Returning breeze.linalg.DenseMatrix from method

[tribhuvan...@gmail.com]

This should fix it --

def func(str: String): DenseMatrix*[Double]* = {
...
...
}

So, why is this required?
Think of it like this -- If you hadn't explicitly mentioned Double, it
might have been that the calling function expected a
DenseMatrix[SomeOtherType], and performed a SomeOtherType-specific
operation which may have not been supported by the returned
DenseMatrix[Double]. (I'm also assuming that SomeOtherType has no subtype
relations with Double).

On 17 November 2014 00:14, Ritesh Kumar Singh riteshoneinamill...@gmail.com
 wrote:

 Hi,

 I have a method that returns DenseMatrix:
 def func(str: String): DenseMatrix = {
 ...
 ...
 }

 But I keep getting this error:
 *class DenseMatrix takes type parameters*

 I tried this too:
 def func(str: String): DenseMatrix(Int, Int, Array[Double]) = {
 ...
 ...
 }
 But this gives me this error:
 *'=' expected but '(' found*

 Any possible fixes?




-- 
*Tribhuvanesh Orekondy*

Re: Returning breeze.linalg.DenseMatrix from method

[Ritesh Kumar Singh]

Yeah, it works.

Although when I try to define a var of type DenseMatrix, like this:

var mat1: DenseMatrix[Double]

It gives an error saying we need to initialise the matrix mat1 at the time
of declaration.
Had to initialise it as :
var mat1: DenseMatrix[Double] = DenseMatrix.zeros[Double](1,1)

Anyways, it works now
Thanks for helping :)

On Mon, Nov 17, 2014 at 4:56 PM, tribhuvan...@gmail.com 
tribhuvan...@gmail.com wrote:

 This should fix it --

 def func(str: String): DenseMatrix*[Double]* = {
 ...
 ...
 }

 So, why is this required?
 Think of it like this -- If you hadn't explicitly mentioned Double, it
 might have been that the calling function expected a
 DenseMatrix[SomeOtherType], and performed a SomeOtherType-specific
 operation which may have not been supported by the returned
 DenseMatrix[Double]. (I'm also assuming that SomeOtherType has no subtype
 relations with Double).

 On 17 November 2014 00:14, Ritesh Kumar Singh 
 riteshoneinamill...@gmail.com wrote:

 Hi,

 I have a method that returns DenseMatrix:
 def func(str: String): DenseMatrix = {
 ...
 ...
 }

 But I keep getting this error:
 *class DenseMatrix takes type parameters*

 I tried this too:
 def func(str: String): DenseMatrix(Int, Int, Array[Double]) = {
 ...
 ...
 }
 But this gives me this error:
 *'=' expected but '(' found*

 Any possible fixes?




 --
 *Tribhuvanesh Orekondy*

Returning breeze.linalg.DenseMatrix from method

[Ritesh Kumar Singh]

Hi,

I have a method that returns DenseMatrix:
def func(str: String): DenseMatrix = {
...
...
}

But I keep getting this error:
*class DenseMatrix takes type parameters*

I tried this too:
def func(str: String): DenseMatrix(Int, Int, Array[Double]) = {
...
...
}
But this gives me this error:
*'=' expected but '(' found*

Any possible fixes?