How to find and chart the frequency of a letter in column with histogram.

2 views (last 30 days)
rogox
rogox on 28 Jul 2021
Commented: Star Strider on 29 Jul 2021
I am looking for a way to find the frequency of a letter appearing in each line of a column in an excel file. The only column I am looking at has data like this: HFHFHSHHAJHJA, HSAJHFGFSAGJ, HSGHSFFJHJ. All I have found online so far, specifically through the mathworks resources is
T = readtable('Data.xlsx');
Sets = T{:, 9};
histogram(Sets, 40, 'FaceAlpha',0.4);
Basically I am trying to find the frequency H appears in each line and then the total frequency of the column.
Thank you for your help.

Answers (1)

Star Strider
Star Strider on 28 Jul 2021
Perhaps —
Col = {'HFHFHSHHAJHJA'; 'HSAJHFGFSAGJ'; 'HSGHSFFJHJ'};
T = cell2table(Col)
T = 3×1 table
Col _________________ {'HFHFHSHHAJHJA'} {'HSAJHFGFSAGJ' } {'HSGHSFFJHJ' }
RowSum = cellfun(@(x)sum(x=='H',2),T{:,1})
RowSum = 3×1
6 2 3
ColSum = sum(RowSum)
ColSum = 11
.
  4 Comments

Sign in to comment.

Tags

Products


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!