Alternative for readable but slow Table dot notation

6 次查看(过去 30 天)
Hi really like how legible the dot notation is for tables in Matlab... however it is just soooo slow to access and slows all my routines down.
I was wondering if there was an alternative to this?
Basically I was bundling up sets of data such as PhyProp, NumProp, GeomProp into tables and passing those to sub-functions.
At the top of each function I would unbundle the variables I needed:
say:
a = PhyProp.a
b = PhyProp.b
c = GeomProp.c
etc...
It made the function argument lists much more conscise and the code overall was still readable as all the unbundling always happened at the top of the function.
What I would like to avoid is to have to use indices, as it means you have to remember what they are before you can write new code.
for example if I had a cell array or something I could do something similar:
a = PhyProp{1}
b = PhyProp{2}
etc... but I have to remember that a is at index 1 etc...with tables it was just so much more readable.
I'll take any advice :)
  5 个评论
Julien MC
Julien MC 2022-5-30
HI @dpb, thanks for your comment. Agree with you here, that local copies are not required. I did run the profiler on the code and 'readtable' and associated table calls are definitely hogging a lot of computation time. I was super surprised as my table is no more than 20 entries in a row, which is much less than you have.
Stephen23
Stephen23 2022-5-30
编辑:Stephen23 2022-5-30
"Why create local copies of the same data? Just use the table variables as is."
As long as the variables are not written to, then probably no local copies are made:
A local variable is just a handle to the existing data, without the repeating the indexing operation.

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