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Re: concatenating strings [message #85695 is a reply to message #85694]

Tue, 27 August 2013 16:31

Seb
Messages: 15
Registered: January 2006

Junior Member

On Tue, 27 Aug 2013 17:11:48 -0600,
Michael Galloy <mgalloy@gmail.com> wrote:

> On 8/27/13 4:56 PM, Seb wrote:
>> Hi,

>> I just began learning IDL, and am not understanding why the following
>> is not producing the string (20111021):

>> ---<--------------------cut
>> here---------------start------------------->---
IDL> caldat, julday(1, 294, 2011), mon, day, year
>> % Compiled module: CALDAT.
IDL> print, year, mon, day
>> 2011 10 21
IDL> print, string(year) + string(mon) + string(day)
>> 2011 10 21 ---<--------------------cut
>> here---------------end--------------------->---

>> I thought that the string() function would coerce the numbers to a
>> string, and then the concatenation operator ('+') would join them
>> together, but this is not happening. What am I missing?

>> Cheers,

> It is happening, but the individual strings that are being created are
> being created with the default formatting (with leading spaces). Try:

IDL> print, strtrim(year, 2) + strtrim(mon, 2) + strtrim(day, 2)
> 20111021

Thank you. So the leading spaces are created by the 'caldat' function
when it outputs the variables, right?

--
Seb

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[Message index]

		concatenating strings By: Seb on Tue, 27 August 2013 15:56
		Re: concatenating strings By: Michael Galloy on Tue, 27 August 2013 16:11
		Re: concatenating strings By: Seb on Tue, 27 August 2013 16:31
		Re: concatenating strings By: kagoldberg on Wed, 28 August 2013 14:58
		Re: concatenating strings By: Phillip Bitzer on Tue, 27 August 2013 16:32
		Re: concatenating strings By: Seb on Wed, 28 August 2013 06:29

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