Re: [Numpy-discussion] Appending data to a big ndarray

2008-08-09 Thread Anne Archibald
2008/8/8 oc-spam66 <[EMAIL PROTECTED]>: > Hello, > > I would like to build a big ndarray by adding rows progressively. > > I considered the following functions : append, concatenate, vstack and the > like. > It appears to me that they all create a new array (which requires twice the > memory). > >

Re: [Numpy-discussion] Appending data to a big ndarray

2008-08-08 Thread Travis E. Oliphant
oc-spam66 wrote: > Hello, > > I would like to build a big ndarray by adding rows progressively. > > I considered the following functions : append, concatenate, vstack and > the like. > It appears to me that they all create a new array (which requires > twice the memory). > > Is there a method for

[Numpy-discussion] Appending data to a big ndarray

2008-08-08 Thread oc-spam66
Hello, I would like to build a big ndarray by adding rows progressively. I considered the following functions : append, concatenate, vstack and the like. It appears to me that they all create a new array (which requires twice the memory). Is there a method for just adding a row to a ndarray w