Forget about Excel. It is hopeless for any serious work. (If you need convincing, see Errors, faults and fixes for Excel.) Any research student in the quantitative sciences should be using a matrix language for computation. I recommend students use R. It is free, has a big user base, and has zillions of add-on packages.
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#1 by Daniel on 29 July 2010 - 6:24 am
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Dear,
I have meteorological data, a serie of the 24 data for day. I need a serie time graphic, with the days in x axis.
But in one day with 24 observations, understand?
I try several form (library “date” “BootPR” …) but without sucess.
The disposition of the data is:
The day is: dd/mm/yyyy
Day Hr Obs
01/01/2010 00 25,5
01/01/2010 01 26
01/01/2010 02 27
.
.
.
05/01/2010 00 20
.
.
.
05/01/2010 23 19
Have how you help me?
I’m brazilian and sorry my english
#2 by Rob J Hyndman on 29 July 2010 - 9:24 am
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Please direct R questions to stats.stackexchange.com.
#3 by castet01 on 22 August 2010 - 8:35 pm
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Well, it looks like problem very similar to a stock exchange intraday time-series display class problem.
Should I therefore suggest you to investigate stock-related packs.
#4 by castet01 on 22 August 2010 - 8:41 pm
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How to load a bmp pic ?
I’ve got a geo map in bmp.
I’d like to load it in R, for display, to be able to click and record geo locations.
What’s the recipy ?
As an example, I am searching to perform in R, what I do with this in matlab, I do loadbmp, image, …, ginput:
% — load %{{{
sBmp=input( sprintf( ‘>– enter bmp [%s]: ‘, mapBmp));
if isempty(sBmp), sBmp=mapBmp;end
sBmp=[ sBmp ‘.bmp’];
[tab tabM]=loadbmp( sBmp);
tab=tab(size(tab,1):-1:1,:);
%}}}
% — plot %{{{
figure(4); clg
colormap(tabM);image( vMap([1 2]),vMap([3 4]), tab); axis(‘xy’);
set( 4, ‘Position’, [590 52 751 652]);
%}}}
( … )
[x y]=ginput
——–
Thx
#5 by Rob J Hyndman on 22 August 2010 - 8:49 pm
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Please send R questions to stats.stackexchange.com. I do not have time to answer questions here.
#6 by language jobs on 2 September 2010 - 12:21 am
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Well, this is encouraging. Good news for me because I haven’t yet mastered Excel and I have to admit to getting slightly peeved with some of the faults on it — which is probably why I gave up on it in the first place.