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  • Wide to long layout

    Goodmorning,

    I have a wide layout:

    I would like to apply fama macbeth regression and therefore my data as a panel will be more straightforward. thus I woud like to a long layout.


    reshape function should do the trick.

    I am slight confused how to tackle this problem though. Stata states that my data is already in a long format..

    date in months are are the monthly dates
    mktrf,smb,hml,cma,rmw are return for factors on a monthly basis

    excess_food , excess_beer are returns on a monthly basis for that industry.

    here is my data:




    . dataex date_in_months MKTRF SMB HML CMA RMW RF excess_food excess_beer

    ----------------------- copy starting from the next line -----------------------
    Code:
    * Example generated by -dataex-. To install: ssc install dataex
    clear
    input float date_in_months double(MKTRF SMB HML) str6(CMA RMW) double RF float(excess_food excess_beer)
    228                4.23  3.84  2.29 "-2.5"  "1.58"   .77   2.27   5.86
    229               -3.56   .53  1.21 "-1.15" "1.04"   .73  -4.76  -4.62
    230                5.68  3.18   -.7 "0.7"   "0.28"   .81    1.6    7.2
    231                -.06   2.4  1.05 "1.18"  "0.21"    .8  -1.27   1.44
    232               -2.21   .47  1.93 "-0.88" "-0.83"  .82  -2.22  -5.48
    233                3.85   .98   1.5 "-1.71" "-0.45"  .81   2.37   5.26
    234   .8199999999999998  1.28  1.69 "-0.16" "0.59"   .77    .12   -.02
    235                5.53  1.94 -1.54 "1.51"  "-1.47"  .77   5.98  10.92
    236  -.8199999999999998  -.32  -.91 "0.86"  "0.52"   .83  -2.61  -1.86
    237                -8.1 -3.48 -1.87 "1.01"  "0.22"   .87  -9.22 -10.46
    238                5.21  2.42 -3.23 "0.13"  "-2"     .99   3.91   6.93
    239                1.79  4.38    -2 "-0.65" "-0.99"  .95   1.17   3.25
    240                5.51  1.93  1.81 "-1.86" "2"       .8   2.21  10.24
    241               -1.22 -1.61   .67 "-1.12" "3.06"   .89  -6.65  -3.19
    242               -12.9 -6.92 -1.08 "1.79"  "-1.34" 1.21  -9.45 -14.64
    243  3.9699999999999998   .96  1.14 "-2.1"  "0.57"  1.26    6.2   3.05
    244                5.26  2.15   .41 "0.48"  "-0.5"   .81   7.05   8.95
    245                3.06  1.48  -.89 "-0.06" "-0.96"  .61   1.44   3.12
    246                6.49  3.92 -6.37 "3.96"  "-2.49"  .53   4.76   8.49
    247  1.8000000000000003  4.27 -2.64 "2.05"  "-0.8"   .64   -.46    .62
    248                2.19   .56 -4.72 "1.86"  "-2.81"  .75  -1.53    .31
    249                1.06  2.28 -2.78 "1.6"   "-1.3"   .95  -2.13   -.48
    250                9.59 -3.39  -8.4 "4.22"  "-5.74"  .96  -1.25   -.78
    251               -4.52  -.29  2.69 "-1.1"  "1.19"  1.31   1.79  -5.38
    252               -5.04  3.38  6.86 "-3.49" "4.37"  1.04   1.27   3.52
    253                 .57  -.44   .99 "0.22"  "2.27"  1.07   1.21    2.1
    254                3.56  3.16   .66 "-2.37" "-0.45" 1.21   5.73   6.75
    255               -2.11  4.59  2.27 "0.88"  "1.2"   1.08  -1.05  -3.13
    256                 .11  2.43  -.42 "0.3"   "-1.61" 1.15   1.59    .13
    257               -2.36  -.96  5.13 "-1.4"  "2.7"   1.35  -2.29   -.75
    258               -1.54    -2   -.6 "1.07"  "-3.03" 1.24  -2.32  -2.32
    259               -7.04  -1.8  4.86 "-0.26" "1.47"  1.28  -6.22     -7
    260               -7.17 -2.54   5.2 "-0.02" "2.8"   1.24  -3.27  -1.87
    261                4.92  2.26  -4.2 "3.29"  "-2.81" 1.21   7.77   7.06
    262                3.36  -1.4   1.9 "0.26"  "0.6"   1.07    .68   2.29
    263               -3.65  1.17   .74 "0.32"  "2.38"   .87   -.55  -3.02
    264 -3.2400000000000007 -1.36  3.17 "-1.44" "2.08"    .8  -1.32   1.04
    265               -5.86   .34  6.08 "-3.46" "4.54"   .92  -1.64  -2.47
    266               -1.87  -.04  3.78 "-1.48" "2.36"   .98   2.19   3.75
    267                3.27  1.15 -2.78 "1.62"  "-0.17" 1.13   5.26   8.79
    268 -3.9900000000000007   .56  1.82 "0.77"  "-0.07" 1.06  -3.54  -3.56
    269               -3.09  -.53  1.56 "-0.1"  "2.69"   .96   1.12   1.19
    270               -3.19   .95   .17 "1.1"   "1.56"  1.05   -.45   7.62
    271               11.14 -4.28  1.18 "-1.91" "0.22"   .76    6.4   3.29
    272                1.29  2.57   .33 "2.14"  "-0.07"  .51   2.97   5.67
    273                11.3  1.92 -3.71 "0.46"  "-0.36"  .59   6.52   6.38
    274                4.67  4.51 -1.98 "-0.74" "0.32"   .63   3.93   6.43
    275                 .55   .01   .04 "-0.15" "1.09"   .67    .47  -4.62
    276  3.6000000000000005  3.31  -.83 "-1.44" "-0.5"   .69  -1.33    .96
    277                2.59  2.94   .72 "-0.68" "1.03"   .62    .48   4.06
    278                2.82  1.42  2.08 "-0.01" "2.83"   .63   4.95  10.58
    279                6.67   .48   .62 "-0.2"  "1.58"   .71   4.53   4.67
    280                 .52  6.19 -1.41 "-1.84" "-1.59"  .69  -1.39     -4
    281                3.07  1.15 -3.92 "2.29"  "-0.92"  .67    .67   -.68
    282               -4.07   .98  5.65 "-0.15" "2.86"   .74  -3.29   -1.1
    283                 -.5 -4.32  5.55 "0.5"   "1.96"   .76   1.27   2.46
    284                 .91   .28  1.12 "1.15"  "0.61"   .76   4.48   3.96
    285               -3.44 -3.82  5.08 "-0.75" "2.97"   .76   2.72  -3.49
    286                2.16  1.89  -.62 "-0.58" "0.66"    .7   2.64  -4.17
    287               -1.78  -.46  1.66 "1.51"  "1.18"   .73    -.7  -3.41
    288               -1.92  -.09   7.6 "-1"    "2.98"   .76    .59  -2.35
    289               -4.82 -1.61  3.35 "0.84"  "1.56"   .71  -4.82   -8.1
    290                 .63  -.29   .49 "-0.91" "1.1"    .73    .95  -2.21
    291                -.51 -1.02  1.29 "3.28"  "0.75"   .81    -.5  -1.28
    292               -5.97   .11   .26 "2.26"  "-0.48"  .78  -2.84  -1.04
    293                1.82   .08 -2.62 "3.08"  "-1.51"  .75   5.96    .02
    294               -2.74 -2.25   .49 "3.69"  "-2.09"  .82  -1.83  -3.69
    295               10.28  -.28 -1.85 "-0.87" "-0.89"  .83   6.51   5.03
    296                 -.8     0  5.33 "1.45"  "2.49"   .86   1.98    .17
    297                -.84 -1.46    .5 "1.28"  "-1.28"    1    .72   3.72
    298               -1.76  -.97  4.08 "0.84"  "2.1"    .73     -1   -.84
    299  1.8399999999999999  -.69  -.16 "1.23"  "-1.28"  .64   1.93    .91
    300                7.99   3.5 -5.44 "-0.85" "-3.38"  .65    .14   4.61
    301                1.22   .99  -.11 "1.38"  "1.02"   .58   5.49    .85
    302                -.84 -1.52   4.1 "1.21"  "2.97"   .62   6.34   3.66
    303                -.96   -.1  3.73 "1.48"  "0.83"   .72  -2.52    .75
    304                5.09 -2.32  -.85 "1.3"   "-1.46"  .66  10.88   7.79
    305                1.27   .44   .62 "1.55"  "-0.63"  .55   2.68   3.13
    306                -.74  2.96 -1.68 "-0.52" "0.33"   .62  -3.52    .56
    307               -1.02  -.34  2.27 "0.02"  "1.72"   .55   2.13    1.7
    308               -4.54 -1.79  1.33 "1.2"   "1.86"    .6   3.92  -1.35
    309                4.02 -1.54   .79 "0.79"  "-1.13"  .65   3.33   4.99
    310   6.480000000000001   .02 -2.93 "0.35"  "-2.15"  .61   9.69   1.82
    311                3.88  -.36 -1.59 "0.85"  "-1.14"  .65   2.03  11.43
    312                 .65   .96   .55 "-1.97" "-2.47"  .56   1.01  -1.42
    313                7.13   -.8  -.93 "1.08"  "-2.16"  .53   8.77   7.18
    314                4.88  -.59  -.44 "1.32"  "0.59"    .6   7.88   8.57
    315               -1.31  2.96 -2.93 "3.01"  "0.48"   .52    .72  -3.44
    316                4.62 -1.33  -.11 "2.09"  "0.43"   .49   7.48   5.88
    317                1.03  -.86  1.41 "1.75"  "0.62"   .52   6.18   8.29
    318               -6.45 -3.52  4.84 "-0.78" "0.61"   .52  -5.54  -3.51
    319                6.07 -4.37  3.48 "-1.58" "3.23"   .46   2.33  -1.89
    320                -8.6  1.97  3.22 "-0.12" "3.62"   .45 -12.66  -8.55
    321                4.66 -2.26 -1.23 "0.15"  "0.9"    .46  10.42   7.09
    322                1.17 -1.89  -.08 "1.11"  "0.6"    .39    .13    .41
    323               -3.27   .08   .33 "0.98"  "-0.09"  .49  -3.45  -2.78
    324               12.47 -1.52 -3.17 "0.22"  "-1.15"  .42  12.11   21.6
    325                4.39  3.41 -5.98 "-0.79" "-2.76"  .43   3.99   2.92
    326  1.6399999999999997   .21  1.59 "1.31"  "4.06"   .47    1.8    .39
    327               -2.11 -1.56  -.31 "-0.48" "1.14"   .44  -6.17   3.77
    end
    format %tm date_in_months
    ------------------ copy up to and including the previous line ------------------

    Listed 100 out of 438 observations
    Use the count() option to list more

    regards,Wes

  • #2
    solved.//closed:

    reshape long excess_, i(date_in_months) j(Ind, string)

    Comment

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