WOLFRAM

Wolfram Language & System Documentation Center
Wolfram Language Home Page »

Initialize
✖
Initialize

[Experimental]

✖
Initialize[sym]

initializes the symbol sym from persistent values on the default persistence path.

✖
Initialize[sym,{loc1,…}]

initializes the symbol sym from persistent values on the persistence path {loc1,…}.

✖
Initialize["patt"]

initializes all variables matching the string pattern "patt".

Details and Options

Examples

open allclose all

Basic Examples  (1)Summary of the most common use cases

Set an initialization value for a variable:

In[1]:=1
✖
https://wolfram.com/xid/0wgl9oy-gcmmbn
Out[1]=1

Initialize the variable from the persistent value:

In[2]:=2
✖
https://wolfram.com/xid/0wgl9oy-67eynj
In[3]:=3
✖
https://wolfram.com/xid/0wgl9oy-t67nui
Out[3]=3

Scope  (1)Survey of the scope of standard use cases

Set initializations for two variables in a given context:

In[1]:=1
✖
https://wolfram.com/xid/0wgl9oy-ou5dx7

Initialize all variables in the given context:

In[2]:=2
✖
https://wolfram.com/xid/0wgl9oy-3kirbv
Out[2]=2
In[3]:=3
✖
https://wolfram.com/xid/0wgl9oy-beh3wk
Out[3]=3

Options  (1)Common values & functionality for each option

MergingFunction  (1)

Establish a default value and merging function for an initialization value:

In[1]:=1
✖
https://wolfram.com/xid/0wgl9oy-zjooew

Add an initialization value at the front end persistence location:

In[2]:=2
✖
https://wolfram.com/xid/0wgl9oy-dbwv0p

The resulting initialization value now uses the default merging function:

In[3]:=3
✖
https://wolfram.com/xid/0wgl9oy-66jqft
Out[3]=3

You can override the default merging function to use for an initialization:

In[4]:=4
✖
https://wolfram.com/xid/0wgl9oy-65ck2l
Out[4]=4

Properties & Relations  (1)Properties of the function, and connections to other functions

Set an initialization value for a variable persisting for the current front end session:

In[1]:=1
✖
https://wolfram.com/xid/0wgl9oy-d23su2
Out[1]=1

Quit and restart the kernel:

In[2]:=2
✖
https://wolfram.com/xid/0wgl9oy-3qwbn4

Each newly started kernel will automatically invoke Initialize for all variables:

In[3]:=3
✖
https://wolfram.com/xid/0wgl9oy-zgtf1f
Out[3]=3

After quitting and restarting the front end, the initialization value is gone:

In[4]:=4
✖
https://wolfram.com/xid/0wgl9oy-yjq5m3
Out[4]=4
Wolfram Research (2017), Initialize, Wolfram Language function, https://reference.wolfram.com/language/ref/Initialize.html.
✖
Wolfram Research (2017), Initialize, Wolfram Language function, https://reference.wolfram.com/language/ref/Initialize.html.

Text

Wolfram Research (2017), Initialize, Wolfram Language function, https://reference.wolfram.com/language/ref/Initialize.html.

✖
Wolfram Research (2017), Initialize, Wolfram Language function, https://reference.wolfram.com/language/ref/Initialize.html.

CMS

Wolfram Language. 2017. "Initialize." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Initialize.html.

✖
Wolfram Language. 2017. "Initialize." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Initialize.html.

APA

Wolfram Language. (2017). Initialize. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Initialize.html

✖
Wolfram Language. (2017). Initialize. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Initialize.html

BibTeX

@misc{reference.wolfram_2025_initialize, author="Wolfram Research", title="{Initialize}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/Initialize.html}", note=[Accessed: 01-April-2025 ]}

✖
@misc{reference.wolfram_2025_initialize, author="Wolfram Research", title="{Initialize}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/Initialize.html}", note=[Accessed: 01-April-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_initialize, organization={Wolfram Research}, title={Initialize}, year={2017}, url={https://reference.wolfram.com/language/ref/Initialize.html}, note=[Accessed: 01-April-2025 ]}

✖
@online{reference.wolfram_2025_initialize, organization={Wolfram Research}, title={Initialize}, year={2017}, url={https://reference.wolfram.com/language/ref/Initialize.html}, note=[Accessed: 01-April-2025 ]}