Comments (2)
@ben-ng: this is ridiculously late, but I've added ndarray-concat-rows and ndarray-concat-cols to merge arrays. It includes the option to let it allocate new storage. It's not exactly what you want(ed), but it's in the ballpark.
See also: ndarray-concat-cols in the scijs docs
from ndarray.
Though to answer your specific question, there's no truly fast way, in general. There are cases where you could just extend the data array and that would be the last column, but it may also be the case that it's transposed and the new column is staggered throughout the data. So to answer the question, yes, I think in general at least, you need to allocate a new array.
For the case where the new column is contiguous, if you used a plain Array
, it'd just expand to accommodate the new entries if you messed with the stride, shape, and offset, but since that's not generally applicable, I'll close this in favor of the above solutions and just having to do it manually sometimes, if that's alright.
Oh, and in case you weren't onto totally different stuff a year and a half ago already, see also: scijs-ndarray-for-matlab-users
from ndarray.
Related Issues (20)
- Masked arrays for typed arrays HOT 8
- Docs should say that hi/lo accept nulls HOT 7
- Docs for hi/lo are confusing HOT 8
- Docs for transpose are wrong HOT 2
- Dot product HOT 3
- Buffer problems
- load a series of images as a volume HOT 1
- How to convert an ndarray back to a buffer/array/…? HOT 2
- Any standard way to `unindex` ? HOT 2
- deleted
- ndarray.set the i, j vector HOT 4
- Code generation HOT 3
- Convert to JS Array? HOT 6
- ndarray not getting value as expected. HOT 2
- Validate input for get method (and others potentially)
- GPU support HOT 1
- Use Proxies to make indexable ndarrays HOT 5
- implementing ndarray in C++ for performance HOT 2
- hi and lo are behaving unexpectedly
- how to reshape a ndarray? HOT 6
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from ndarray.