MATLAB: Remove strings from an array based on string length

Question

Hello. I'm trying to remove strings from a string array based on string length. I want to remove strings with lesser than 2 alphabets. I tried the following code but I'm getting an error

clc; clear;

s = {'a';'b';'cat';'apple'};

s1 = string(s);

String_length = strlength(s1);

Min_length = 2;

Modified_string = [s1 String_length];

indices = find(Modified_string(:,2) < Min_length);

Modified_string(indices,:) = [];

Error using <

Comparison between string and double is not supported.

Error in Dummy (line 8)

indices = find(Modified_string(:,2) < Min_length);

Answer 1

For you to do the comparison you must first convert the string to a numeric. The following code should solve your problem:

clc; clear;
s = {'a';'b';'cat';'apple'};
s1 = string(s);
String_length = strlength(s1);
Min_length = 2;
Modified_string = [s1 String_length];
indices = find( str2double(Modified_string(:,2)) < Min_length);
Modified_string(indices,:) = [] 
Modified_string = 
  2×2 string array
    "cat"      "3"
    "apple"    "5"