I have encountered a similar problem:
If a table column starts with an empty cell, Table.getColumn returns an empty
array.
If a table column has an empty cell further down, Table.getColumn returns a
truncated array until that cell.
So I wonder if this is a related bug.
Macro to reproduce:
tableName = "Test Table";
Table.create(tableName);
Table.set("ABC", 0, "", tableName);
Table.set("ABC", 1, "A", tableName);
Table.set("ABC", 2, "B", tableName);
Table.set("ABC", 3, "C", tableName);
Table.set("ABC", 4, "", tableName);
Table.set("ABC", 5, "D", tableName);
ABC = Table.getColumn("ABC", tableName);
Array.show(ABC);
waitForUser("ABC column is now empty, with length: " + ABC.length);
Table.set("ABC", 0, "blank", tableName);
ABC = Table.getColumn("ABC", tableName);
Array.show(ABC);
waitForUser("ABC column is now populated, but with too short length: " +
ABC.length);
Table.set("ABC", 4, "blank", tableName);
ABC = Table.getColumn("ABC", tableName);
Array.show(ABC);
waitForUser("ABC column is now correct, with length: " + ABC.length);
Stein
-----Original Message-----
From: Wayne Rasband <[email protected]>
Sent: tirsdag 2. april 2024 20:00
Subject: Re: Table shows NaNs instead empty fields
> On Apr 2, 2024, at 9:13 AM, Norbert Vischer <[email protected]> wrote:
>
> Hello all (Wayne?)
>
> I want to use table columns for string flags, but I get the following problem:
> When I save and reload the table, empty fields after the last flag are filled
> with"NaN".
> Explicitly setting fields to empty strings before saving does not help.
Hi Norbert,
This bug is fixed in the ImageJ 1.54j13 daily build.
-wayne
> tabName = "Test.csv";
> Table.create(tabName);
> ColA = newArray(10);
> Table.setColumn("Nums", ColA, tabName); Table.setColumn("Flags",
> newArray(0), tabName); Table.set("Flags", 4, "ABC", tabName);
> Table.update(tabName); dir = getDir("temp"); Table.save(dir + tabName,
> tabName); waitForUser; open(dir + tabName);
>
> /* output:
> 0
> 0
> 0
> 0
> 0 ABC
> 0 NaN
> 0 NaN
> 0 NaN
> 0 NaN
> 0 NaN
> */
>
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