If you make `Image` a case class, then select(image.data) should work.
On Tue, Feb 24, 2015 at 3:06 PM, Jaonary Rabarisoa jaon...@gmail.com wrote:
Hi all,
I have a DataFrame that contains a user defined type. The type is an image
with the following attribute
class Image(w: Int, h: Int,
Btw, the correct syntax for alias should be
`df.select($image.data.as(features))`.
On Tue, Feb 24, 2015 at 3:35 PM, Xiangrui Meng men...@gmail.com wrote:
If you make `Image` a case class, then select(image.data) should work.
On Tue, Feb 24, 2015 at 3:06 PM, Jaonary Rabarisoa jaon...@gmail.com
By doing so, I got the following error :
Exception in thread main org.apache.spark.sql.AnalysisException: GetField
is not valid on fields
Seems that it doesn't like image.data expression.
On Wed, Feb 25, 2015 at 12:37 AM, Xiangrui Meng men...@gmail.com wrote:
Btw, the correct syntax for alias
Hi all,
I have a DataFrame that contains a user defined type. The type is an image
with the following attribute
*class Image(w: Int, h: Int, data: Vector)*
In my DataFrame, images are stored in column named image that corresponds
to the following case class
*case class LabeledImage(label: Int,
