matlab import text format -

the txt file follows.

  1      1     0          2      1     3               2     9               3    10         3      1     1      

when use importdata import file , following format;

1   1   0 2   1   3 2   9   nan 3   10  nan 3   1   1 

what want

  1      1     0          2      1     3      nan      2     9      nan      3    10         3      1     1     

is there convenient way? or should make tab between each number before importing let matlab recognize first element nan? thanks!

edit

i tested , found if delimiter tab , format correct. wondering if other easy approach? thanks.

i think problem importdata() doesn't distinguish between 1 or several spaces, assumes line starts first number. tab-delimited data doesn't have issue. if creating data sets, it's best separate data using tabs or commas. may able pull off text formatting magic using textscan() though.