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MathGroup Archive 2005

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Re: Rearranging a data array containing calendrical as well as data entries.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg54915] Re: Rearranging a data array containing calendrical as well as data entries.
  • From: "Hans Michel" <hmichel at sdc.cox.net>
  • Date: Sun, 6 Mar 2005 00:56:04 -0500 (EST)
  • References: <200503030329.WAA21121@smc.vnet.net> <d09cct$d0a$1@smc.vnet.net>
  • Reply-to: "Hans Michel" <hmichel at sdc.cox.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Does not match.

January has 31 days.

The USGS data is well ordered.

Hans

"DrBob" <drbob at bigfoot.com> wrote in message 
news:d09cct$d0a$1 at smc.vnet.net...
> Here's a start:
>
> rawData=Import["test.txt","Table"]
>
> {{1999,1,1,489.82,489.82,495.01,495.01,495.01,495.01,495.01,490.51},{1999,1,2,
>     490.51,490.51,490.51,490.51,490.38,490.38,490.38,490.38},{
> 
> 1999,1,3,490.38,510.38,510.38,510.38,510.38,510.38,528.66,528.66},{1999,1,4,
>     528.66,528.66,528.66,501.68,501.68,501.68,501.68},{1999,2,
> 
> 1,501.68,496.44,496.44,496.44,496.44,496.44,478.72,478.72},{1999,2,2,478.72,
>     478.72,478.72,452.82,452.82,452.82,452.82,452.82},{1999,2,
> 
> 3,450.19,450.19,450.19,450.19,450.19,443.98,443.98,443.98},{1999,2,4,443.98,
>     443.98,440.14,440.14},{1999,3,1,440.14,440.14,440.14,453.64,
> 
> 453.64,453.64,453.64,453.64},{1999,3,2,503.98,503.98,503.98,503.98,503.98,
>     500.84,500.84,500.84},{1999,3,3,500.84,500.84,473.48,473.48,
> 
> 473.48,473.48,473.48,463.19},{1999,3,4,463.19,463.19,463.19,463.19,457.54,
>     457.54,457.54}}
>
> Clear[dateValue, month, twoDigit]
> twoDigit[i_Integer?Positive] := StringJoin @@
>    PadLeft[Characters@ToString@i, 2, "0"]
> month[i_Integer] /; 1 <= i <= 12 := month[i] = {"Jan", "Feb", "Mar",
>  "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}[[i]]
> dateValue@{yr_, mo_, wk_, values___} := Transpose@{twoDigit[# + 7(
>   wk - 1)] <> month@mo <> ToString@yr & /@ Range@Length@{values}, 
> {values}}
> Flatten[dateValue /@ rawData, 1]
>
> {{"01Jan1999", 489.82},
>   {"02Jan1999", 489.82},
>   {"03Jan1999", 495.01},
>   {"04Jan1999", 495.01},
>   {"05Jan1999", 495.01},
>   {"06Jan1999", 495.01},
>   {"07Jan1999", 495.01},
>   {"08Jan1999", 490.51},
>   {"08Jan1999", 490.51},
>   {"09Jan1999", 490.51},
>   {"10Jan1999", 490.51},
>   {"11Jan1999", 490.51},
>   {"12Jan1999", 490.38},
>   {"13Jan1999", 490.38},
>   {"14Jan1999", 490.38},
>   {"15Jan1999", 490.38},
>   {"15Jan1999", 490.38},
>   {"16Jan1999", 510.38},
>   {"17Jan1999", 510.38},
>   {"18Jan1999", 510.38},
>   {"19Jan1999", 510.38},
>   {"20Jan1999", 510.38},
>   {"21Jan1999", 528.66},
>   {"22Jan1999", 528.66},
>   {"22Jan1999", 528.66},
>   {"23Jan1999", 528.66},
>   {"24Jan1999", 528.66},
>   {"25Jan1999", 501.68},
>   {"26Jan1999", 501.68},
>   {"27Jan1999", 501.68},
>   {"28Jan1999", 501.68},
>   {"01Feb1999", 501.68},
>   {"02Feb1999", 496.44},
>   {"03Feb1999", 496.44},
>   {"04Feb1999", 496.44},
>   {"05Feb1999", 496.44},
>   {"06Feb1999", 496.44},
>   {"07Feb1999", 478.72},
>   {"08Feb1999", 478.72},
>   {"08Feb1999", 478.72},
>   {"09Feb1999", 478.72},
>   {"10Feb1999", 478.72},
>   {"11Feb1999", 452.82},
>   {"12Feb1999", 452.82},
>   {"13Feb1999", 452.82},
>   {"14Feb1999", 452.82},
>   {"15Feb1999", 452.82},
>   {"15Feb1999", 450.19},
>   {"16Feb1999", 450.19},
>   {"17Feb1999", 450.19},
>   {"18Feb1999", 450.19},
>   {"19Feb1999", 450.19},
>   {"20Feb1999", 443.98},
>   {"21Feb1999", 443.98},
>   {"22Feb1999", 443.98},
>   {"22Feb1999", 443.98},
>   {"23Feb1999", 443.98},
>   {"24Feb1999", 440.14},
>   {"25Feb1999", 440.14},
>   {"01Mar1999", 440.14},
>   {"02Mar1999", 440.14},
>   {"03Mar1999", 440.14},
>   {"04Mar1999", 453.64},
>   {"05Mar1999", 453.64},
>   {"06Mar1999", 453.64},
>   {"07Mar1999", 453.64},
>   {"08Mar1999", 453.64},
>   {"08Mar1999", 503.98},
>   {"09Mar1999", 503.98},
>   {"10Mar1999", 503.98},
>   {"11Mar1999", 503.98},
>   {"12Mar1999", 503.98},
>   {"13Mar1999", 500.84},
>   {"14Mar1999", 500.84},
>   {"15Mar1999", 500.84},
>   {"15Mar1999", 500.84},
>   {"16Mar1999", 500.84},
>   {"17Mar1999", 473.48},
>   {"18Mar1999", 473.48},
>   {"19Mar1999", 473.48},
>   {"20Mar1999", 473.48},
>   {"21Mar1999", 473.48},
>   {"22Mar1999", 463.19},
>   {"22Mar1999", 463.19},
>   {"23Mar1999", 463.19},
>   {"24Mar1999", 463.19},
>   {"25Mar1999", 463.19},
>   {"26Mar1999", 457.54},
>   {"27Mar1999", 457.54},
>   {"28Mar1999", 457.54}}
>
> Bobby
>
>
> On Wed, 2 Mar 2005 22:29:16 -0500 (EST), Gilmar 
> <gilmar.rodriguez at nwfwmd.state.fl.us> wrote:
>
>> Dear Mathematica User Friends:
>>
>> I have a file containing flow data from the USGS, in the following
>> format:
>>
>> 1999 1 1 489.82 489.82 495.01 495.01 495.01 495.01 495.01 490.51
>> 1999 1 2 490.51 490.51 490.51 490.51 490.38 490.38 490.38 490.38
>> 1999 1 3 490.38 510.38 510.38 510.38 510.38 510.38 528.66 528.66
>> 1999 1 4 528.66 528.66 528.66 501.68 501.68 501.68 501.68
>> 1999 2 1 501.68 496.44 496.44 496.44 496.44 496.44 478.72 478.72
>> 1999 2 2 478.72 478.72 478.72 452.82 452.82 452.82 452.82 452.82
>> 1999 2 3 450.19 450.19 450.19 450.19 450.19 443.98 443.98 443.98
>> 1999 2 4 443.98 443.98 440.14 440.14
>> 1999 3 1 440.14 440.14 440.14 453.64 453.64 453.64 453.64 453.64
>> 1999 3 2 503.98 503.98 503.98 503.98 503.98 500.84 500.84 500.84
>> 1999 3 3 500.84 500.84 473.48 473.48 473.48 473.48 473.48 463.19
>> 1999 3 4 463.19 463.19 463.19 463.19 457.54 457.54 457.54
>>
>> This format is used by the USGS to compress their data records.
>>
>> Each row contains:
>> Year, Month Number(1 to 12), Row Number (1 to 4), and data entries.
>>
>> The first row:
>> 1999 1 1 489.82 489.82 495.01 495.01 495.01 495.01 495.01 490.51
>> contains flow values corresponding to: January 1 to January 8,
>> of the year 1999.
>>
>> The second row:
>> 1999 1 2 490.51 490.51 490.51 490.51 490.38 490.38 490.38 490.38
>> contains flow values corresponding to: January 9 to January 16,
>> of the year 1999.
>>
>> The third row:
>> 1999 1 3 490.38 510.38 510.38 510.38 510.38 510.38 528.66 528.66
>> contains flow values corresponding to: January 17 to January 24,
>> of the year 1999.
>>
>> The fourth row:
>> 1999 1 4 528.66 528.66 528.66 501.68 501.68 501.68 501.68
>> contains flow values corresponding to: January 25 to January 31,
>> of the year 1999.
>>
>> I think that you get the picture of how this data set is assembled.
>>
>> What I need is a program that can turn the above mentioned horizontal
>> array, into a simple vertical array, containing two columns;
>> the first column contains the dates when the data was collected,
>> and the second column contains the flow values; i.e.
>>
>> 01Jan1999 489.82
>> 02Jan1999 489.82
>> 03Jan1999 495.01
>> etc.
>>
>> If I give the program a starting date, and ending date for an
>> arbitrary record; the program should be able to allocate two
>> arrays to:
>>
>> (1.) put the dates between the starting date, and ending date,
>> to form the first column of the vertical array.
>>
>> (2.)match correctly those dates with the data to appear in
>> the second column of the vertical array.
>>
>> The program should discern between regular years, and leap
>> years.  Those of you that are still using FORTRAN, and have
>> experienced how difficult it is to deal with date functions
>> using FORTRAN, might sympathize with my request.
>>
>> P.S. To get a larger set of USGS flow data to test your program
>> please download the following file:
>>
>> http://www.gilmarlily.netfirms.com/download/flow.dat
>>
>> Thank you for your help!
>>
>>
>>
>>
>
>
>
> -- 
> DrBob at bigfoot.com
> www.eclecticdreams.net
> 


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