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MathGroup Archive 2005

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Re: Converting Strings to Ints.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63287] Re: Converting Strings to Ints.
  • From: "Jean-Marc Gulliet" <jeanmarc.gulliet at gmail.com>
  • Date: Fri, 23 Dec 2005 05:08:15 -0500 (EST)
  • Organization: The Open University, Milton Keynes, U.K.
  • References: <200512200919.EAA28501@smc.vnet.net> <200512210435.XAA14697@smc.vnet.net> <dode99$64c$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

"Chrisantha" <ctf20 at sussex.ac.uk> a écrit dans le message de news: 
dode99$64c$1 at smc.vnet.net...
| Dear All,
|
| I have a list of strings representing numbers, i.e. a =
| {"12223","11313","2424"} that I generated in XML and read into
| mathematica. How do I convert this into a list of integers?
|
| Yours Ever and Merry Christmas,
|
| Chrisantha
|

Hi Chrisantha,

You can use the built-in function *ToExpression* (see In[4]):

In[1]:= lst = {"12223", "11313", "2424"}
Out[1]= {12223,11313,2424}

In[2]:= FullForm[lst]
Out[2]//FullForm= List["12223","11313","2424"]

In[3]:= Head /@ lst
Out[3]= {String,String,String}

In[4]:= data = ToExpression[lst]
Out[4]= {12223,11313,2424}

In[5]:= FullForm[data]
Out[5]//FullForm= List[12223,11313,2424]

In[6]:= Head /@ data
Out[6]= {Integer,Integer,Integer}

Best regards,
/J.M. 



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