[Gretl-devel] Data messed up after 'append' with panel data

Hi, this problem turned out to be easy to demonstrate, after it was recognized and diagnosed: First consider the workfile 'importcheck'. It is a 5 units by 5 periods panel dataset, structured by the index variables 'ix' and 'tx'; the existing values of 'ix' are 25, 27, 30, 35, 40. The only real variable is called 'somedata' and has mostly missings. The second file 'tobeimported' also has panel data identified by ix and tx, but there is an additional ix=33 in there, so it's 6 units by 5 periods. When you append the second file to the first, gretl says 'appended ok', but in fact it does not honor the ix/tx-structure, such that the values of the existing variable 'somedata' are moved around to different observations. This is pretty bad, especially if you do not notice it right away! This is with today's snapshot on Windows, but must have existed before the latest release. thanks, sven