Alias blanks in the cell array as a string.
显示 更早的评论
I am using the ‘importdata’ function to read a text file. It reads the numeric data as a matrix and text data as a cell array; now the first element of cell array is all the headers, I use a ‘strsplit’ function to separate each individual variable name in header. The issue is that there are some blank columns in the text file, so the numeric matrix reads it as a ‘NaN’ but the resulting variables (which I used ‘strsplit’ for) eliminates blanks. Now the result is that size(textdata,2) +size(data,2) is not equal to size(variable,2). I want to read blanks in the header as a variable, alias it as ‘empty’
5 个评论
Viraj Sabane
2025-1-31
编辑：Walter Roberson
2025-1-31
Viraj Sabane
2025-1-31
dpb
2025-1-31
"I am using the ‘importdata’ function to read a text file..."
There's the root problem. importdata, while handy from a simple syntax standpoint tends to create more trouble than it solves as you discovered. I'd recommend using readtable instead and you'll have both variables handled by name by their proper type in a single table variable. You can customize how things are imported regarding the missing columns per your requirements with either some additional named variable options or by the use of an import object via detectImportOptions
Stephen23
2025-1-31
I second dpb's comment: avoid IMPORTDATA, use READTABLE or TEXTSCAN or the like.
Viraj Sabane
2025-2-3
采纳的回答
更多回答（1 个）
Viraj Sabane
2025-2-16
0 个投票
Hello All, taking advice of everyone who commented; I was able to robustly solve the issue of dowloading data from a text file and also retain the variable name. This particular text file had variable names in line 1 and line line 1 also had blanks. Following code has worked reliably for me.
And if your text file happen to have many lines before the line with headers, following has worked well for me.
类别
在 帮助中心 和 File Exchange 中查找有关 Data Import and Export 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
