MATLAB: How to show a column of a cell array

cumulative sum

Hi, I have a cell array, the first column is made up of 50 cell of 4×960, but the rest of the columns are 50 cells of 1×1,
<4x960 double>
  1291.75000000000  0.0187693546482941  []  []
<4x960 double>
  1151.83333333333  0.0167363408779253  []  []
<4x960 double>
  1250.75000000000  0.0181736174386327  []  []
<4x960 double>
  1419.50000000000  0.0206255846125438  []  []
<4x960 double>
  1527.91666666667  0.0222008978437825  []  []
<4x960 double>
  1451  0.0210832851516738  []  []
<4x960 double>
  1277.04166666667  0.0185556399785680  []  []
<4x960 double>
  1413.50000000000  0.0205384035574714  []  []
<4x960 double>
  1235.41666666667  0.0179508214090033  []  []
<4x960 double>
  1400.50000000000  0.0203495112714812  []  []
<4x960 double>
  1358.75000000000  0.0197428764299358  []  []
<4x960 double>
  1241.25000000000  0.0180355807681014  []  []
<4x960 double>
  1623.50000000000  0.0235897404850052  []  []
<4x960 double>
  1760.75000000000  0.0255840071197862  []  []
<4x960 double>
  1174.16666666667  0.0170608481384726  []  []
<4x960 double>
  1170.41666666667  0.0170063599790523  []  []
<4x960 double>
  1275  0.0185259742028836  []  []
<4x960 double>
  1384.16666666667  0.0201121850660064  []  []
<4x960 double>
  1252.58333333333  0.0182002560943493  []  []
<4x960 double>
  1410.91666666667  0.0205008672698708  []  []
<4x960 double>
  1310  0.0190345303574726  []  []
<4x960 double>
  1279.91666666667  0.0185974142341235  []  []
<4x960 double>
  1396  0.0202841254801769  []  []
<4x960 double>
  1371  0.0199208710840419  []  []
<4x960 double>
  1390.75000000000  0.0202078420569886  []  []
<4x960 double>
  1470.91666666667  0.0213726778205947  []  []
<4x960 double>
  1187.25000000000  0.0172509512724499  []  []
<4x960 double>
  1528  0.0222021086917696  []  []
<4x960 double>
  1579.25000000000  0.0229467802038463  []  []
<4x960 double>
  1788.25000000000  0.0259835869555346  []  []
<4x960 double>
  1184.50000000000  0.0172109932888750  []  []
<4x960 double>
  1102.16666666667  0.0160146754776039  []  []
<4x960 double>
  1478.58333333333  0.0214840758354094  []  []
<4x960 double>
  1548.25000000000  0.0224963447526389  []  []
<4x960 double>
  1396.83333333333  0.0202962339600481  []  []
<4x960 double>
  1374  0.0199644616115781  []  []
<4x960 double>
  1222.25000000000  0.0177595074270388  []  []
<4x960 double>
  1425  0.0207055005796935  []  []
<4x960 double>
  1460.25000000000  0.0212176892782438  []  []
<4x960 double>
  1449.50000000000  0.0210614898879058  []  []
<4x960 double>
  1443.66666666667  0.0209767305288076  []  []
<4x960 double>
  1567  0.0227687855497401  []  []
<4x960 double>
  1314.66666666667  0.0191023378447511  []  []
<4x960 double>
  1215.75000000000  0.0176650612840438  []  []
<4x960 double>
  1223.83333333333  0.0177825135387941  []  []
<4x960 double>
  1587.50000000000  0.0230666541545708  []  []
<4x960 double>
  1379.50000000000  0.0200443775787278  []  []
<4x960 double>
  1265  0.0183806724444296  []  []
<4x960 double>
  1505.75000000000  0.0218788122792094  []  []
<4x960 double>
  1306.25000000000  0.0189800421980524  []  []
column 4 should be the cumulative sum of column 3, would you please help me assign it?

Best Answer

Say your cell array is A.
 A(:,4)=num2cell(cumsum(cell2mat(A(:,3))))
(Cells to numeric, do the math, numeric back to cells.)
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