rounding elements in array to nearest 0.25
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Srinivas
il 25 Ago 2011
Commentato: Matthias Schneider
il 4 Dic 2023
i need to round off some numbers to nearest quarter , with an option to round up or round down to nearest quarter
for e.g. For an array for (5,1) with following values
1373.698
1385.024
1394.82
1400.436
1396.532
output for rounding up to closest 0.25 will result in
1373.75
1385.25
1395.00
1400.50
1396.75
output for rounding down to closest 0.25 will be
1373.50
1385.00
1394.75
1400.25
1396.50
I am not sure how to create such a function which gives this output, please help .
1 Commento
Risposta accettata
Friedrich
il 25 Ago 2011
Hi,
I think you are looking for:
in = [1373.698
1385.024
1394.82
1400.436
1396.532];
%round up
up = floor(in) + ceil( (in-floor(in))/0.25) * 0.25
%round down
down = floor(in) + floor( (in-floor(in))/0.25) * 0.25
2 Commenti
Più risposte (2)
Walter Roberson
il 25 Ago 2011
The previous answers look more complex than needed
%round up
up = ceil(in * 4) / 4;
%round down
down = floor(in * 4) / 4;
2 Commenti
Anders Tagmose Lundsfryd
il 17 Mar 2021
Modificato: Anders Tagmose Lundsfryd
il 6 Apr 2021
If you want to round to the nearest 0.25 both up and down, then do:
%roudn to nearest 0.25
updown = round(in * 4)/4;
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