How does one use a string vector to select rows from a table. The vector length and the table height are unequal

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George
George 2023-8-14
编辑： Daniel Bengtson 2023-8-15
The elements of vector (X) correspond to the 1st column of the table (T).
lenght(X) << height(T)
I want to use X to extract the corresponding rows the table
Note that the vector elements are unique e.g. X = ["AGAP004746", "AGAP004753", "AGAP004756"]
Some of the rows are shown below. The elements of T(:, 1) are not unique.
AGAP004746 CPIJ018891-PA 1:1 1082603
AGAP004747 CPIJ011183-PA 1:1 1002379
AGAP004749 CPIJ006245-PA 1:1 1102192
AGAP004750 CPIJ002918-PA 1:1 689782
AGAP004752 CPIJ009694-PA 1:1 1177233
AGAP004753 CPIJ001266-PA 1:m 788759
AGAP004753 CPIJ011603-PA 1:m NA
AGAP004754 CPIJ002923-PA 1:1 1170952
AGAP004755 CPIJ002926-PA 1:1 NA
AGAP004756 CPIJ002925-PA 1:m 1082201
AGAP004756 CPIJ011812-PA 1:m NA
The expected output should be Table T1 below
AGAP004746 CPIJ018891-PA 1:1 1082603
AGAP004753 CPIJ001266-PA 1:m 788759
AGAP004753 CPIJ011603-PA 1:m NA
AGAP004756 CPIJ002925-PA 1:m 1082201
AGAP004756 CPIJ011812-PA 1:m NA

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采纳的回答

Voss
Voss 2023-8-14
X = ["AGAP004746", "AGAP004753", "AGAP004756"];
idx = ismember(T{:,1},X);
T1 = T(idx,:);

更多回答（1 个）

Daniel Bengtson
Daniel Bengtson 2023-8-14
编辑：Daniel Bengtson 2023-8-15
T = %your table
X = {"AGAP004746", "AGAP004753", "AGAP004756"};
T1 = T(cell2mat(cellfun(@(x) any(strcmp(x,X)),T{:,1},'UniformOutput',false)),:);
  2 个评论
George
George 2023-8-15
T is 11915x4 table
"AGAP004677" "CPIJ004710-PA" "1:1" "1185504"
"AGAP004679" "CPIJ008043-PA" "1:1" ""
"AGAP004682" "CPIJ006146-PA" "1:1" ""
"AGAP004685" "CPIJ000737-PA" "1:1" "1053699"
"AGAP004686" "CPIJ004712-PA" "1:1" "682105"
etc.
X is a 106x1 string
"AGAP000088"
"AGAP000192"
"AGAP000193"
"AGAP000194"
"AGAP000284"
"AGAP000818"
etc
Assuming that you mean T and X instead of t and x in line 3 of your script,
T1 = T(cell2mat(cellfun(@(X) any(strcmp(X,VectorEls)),T{:,1},'UniformOutput',false)),:)
T1 = 0×4 empty table
Daniel Bengtson
Daniel Bengtson 2023-8-15
Good catch on the t -> T mistake, but x is just a function handle and would have been fine. I stole that line from something else that I was working on and was sloppy with variables. Edited for correction.

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