[R] Converting "day of year" to "year", "month" and "day"
Jibrin Alhassan
j|br|n@@|h@@@@n @end|ng |rom unn@edu@ng
Wed Jan 20 13:52:16 CET 2021
Jeff,
Thank you so much for the challenge. It is inspiring.
Jibrin
On Sun, Jan 17, 2021 at 7:04 PM Jeff Newmiller <jdnewmil using dcn.davis.ca.us>
wrote:
> This is an opportunity for you to think for yourself (r-help) instead of
> expecting solutions neatly wrapped and delivered (r-do-my-work-for-me).
> Remove the no-longer-needed columns once the desired columns are available.
>
> On January 17, 2021 7:12:28 AM PST, Jibrin Alhassan <
> jibrin.alhassan using unn.edu.ng> wrote:
> >Hi Barradas,
> >Thanks for your assistance. It has brought me closer to what I am
> >looking
> >for. I tried your code as shown below:
> >> df1 <- read.table("SWSdata_1998_2002", header = TRUE)
> >> df1$date <- as.Date(paste(df1$year, df1$day),format = "%Y %j",origin
> >=
> >"1998-01-01")
> >> head(df1)
> > year day Hr SWS date
> >1 1998 1 0 344 1998-01-01
> >2 1998 2 0 346 1998-01-02
> >3 1998 3 0 356 1998-01-03
> >4 1998 4 0 332 1998-01-04
> >5 1998 5 0 302 1998-01-05
> >6 1998 6 0 329 1998-01-06
> >What I need is the last two columns only (SWS, date). The first 3
> >columns
> >(year, day Hr should go). Your code produced only 6 datasets. My
> >dataset is
> >1,826 from 1998 to 2002. How do I generate this at once?
> >Many many thanks for your time. I have pasted below a section of my
> >dataset
> >for your guidance, please.
> >Jibrin
> >year day Hr SWS
> >1998 1 0 344.
> >1998 2 0 346.
> >1998 3 0 356.
> >1998 4 0 332.
> >1998 5 0 302.
> >1998 6 0 329.
> >1998 7 0 395.
> >1998 8 0 359.
> >1998 9 0 471.
> >1998 10 0 392.
> >1998 11 0 346.
> >1998 12 0 387.
> >1998 13 0 393.
> >1998 14 0 367.
> >1998 15 0 320.
> >1998 16 0 309.
> >1998 17 0 341.
> >1998 18 0 329.
> >1998 19 0 322.
> >1998 20 0 429.
> >1998 21 0 433.
> >1998 22 0 398.
> >1998 23 0 393.
> >1998 24 0 393.
> >1998 25 0 423.
> >1998 26 0 426.
> >1998 27 0 429.
> >1998 28 0 386.
> >1998 29 0 381.
> >1998 30 0 375.
> >1998 31 0 365.
> >1998 32 0 450.
> >1998 33 0 381.
> >1998 34 0 316.
> >1998 35 0 351.
> >1998 36 0 306.
> >1998 37 0 312.
> >1998 38 0 320.
> >1998 39 0 339.
> >1998 40 0 395.
> >1998 41 0 429.
> >1998 42 0 479.
> >1998 43 0 495.
> >1998 44 0 407.
> >1998 45 0 358.
> >1998 46 0 360.
> >1998 47 0 382.
> >1998 48 0 394.
> >1998 49 0 393.
> >1998 50 0 435.
> >1998 51 0 408.
> >1998 52 0 360.
> >1998 53 0 372.
> >1998 54 0 376.
> >1998 55 0 379.
> >1998 56 0 361.
> >1998 57 0 333.
> >1998 58 0 321.
> >1998 59 0 344.
> >1998 60 0 412.
> >1998 61 0 428.
> >1998 62 0 401.
> >1998 63 0 369.
> >1998 64 0 343.
> >1998 65 0 330.
> >1998 66 0 317.
> >1998 67 0 296.
> >1998 68 0 282.
> >1998 69 0 404.
> >1998 70 0 530.
> >1998 71 0 525.
> >1998 72 0 484.
> >1998 73 0 430.
> >1998 74 0 388.
> >1998 75 0 347.
> >1998 76 0 337.
> >1998 77 0 342.
> >1998 78 0 305.
> >1998 79 0 329.
> >1998 80 0 420.
> >1998 81 0 564.
> >1998 82 0 483.
> >1998 83 0 385.
> >1998 84 0 393.
> >1998 85 0 437.
> >1998 86 0 441.
> >1998 87 0 434.
> >1998 88 0 471.
> >1998 89 0 429.
> >1998 90 0 412.
> >1998 91 0 370.
> >1998 92 0 326.
> >1998 93 0 357.
> >1998 94 0 338.
> >1998 95 0 380.
> >1998 96 0 339.
> >1998 97 0 312.
> >1998 98 0 313.
> >1998 99 0 327.
> >1998 100 0 362.
> >1998 101 0 358.
> >1998 102 0 387.
> >1998 103 0 397.
> >1998 104 0 375.
> >1998 105 0 350.
> >1998 106 0 357.
> >1998 107 0 472.
> >1998 108 0 526.
> >1998 109 0 396.
> >1998 110 0 374.
> >1998 111 0 376.
> >1998 112 0 355.
> >1998 113 0 343.
> >1998 114 0 425.
> >1998 115 0 426.
> >1998 116 0 479.
> >1998 117 0 469.
> >1998 118 0 425.
> >1998 119 0 344.
> >1998 120 0 341.
> >1998 121 0 426.
> >1998 122 0 601.
> >1998 123 0 476.
> >1998 124 0 670.
> >1998 125 0 585.
> >1998 126 0 496.
> >1998 127 0 479.
> >1998 128 0 569.
> >1998 129 0 531.
> >1998 130 0 489.
> >1998 131 0 484.
> >1998 132 0 480.
> >1998 133 0 393.
> >1998 134 0 332.
> >1998 135 0 327.
> >1998 136 0 493.
> >1998 137 0 493.
> >1998 138 0 430.
> >1998 139 0 396.
> >1998 140 0 408.
> >1998 141 0 416.
> >1998 142 0 376.
> >1998 143 0 375.
> >1998 144 0 415.
> >1998 145 0 407.
> >1998 146 0 398.
> >1998 147 0 352.
> >1998 148 0 349.
> >1998 149 0 517.
> >1998 150 0 597.
> >1998 151 0 480.
> >1998 152 0 435.
> >1998 153 0 408.
> >1998 154 0 441.
> >1998 155 0 397.
> >1998 156 0 374.
> >1998 157 0 413.
> >1998 158 0 582.
> >1998 159 0 513.
> >1998 160 0 459.
> >1998 161 0 466.
> >1998 162 0 414.
> >1998 163 0 354.
> >1998 164 0 341.
> >1998 165 0 343.
> >1998 166 0 369.
> >1998 167 0 411.
> >1998 168 0 355.
> >1998 169 0 333.
> >1998 170 0 443.
> >1998 171 0 426.
> >1998 172 0 419.
> >1998 173 0 404.
> >1998 174 0 387.
> >1998 175 0 460.
> >1998 176 0 447.
> >1998 177 0 469.
> >1998 178 0 447.
> >1998 179 0 389.
> >1998 180 0 375.
> >1998 181 0 354.
> >1998 182 0 316.
> >1998 183 0 369.
> >1998 184 0 410.
> >1998 185 0 406.
> >1998 186 0 477.
> >1998 187 0 583.
> >1998 188 0 458.
> >1998 189 0 386.
> >1998 190 0 342.
> >1998 191 0 333.
> >1998 192 0 369.
> >1998 193 0 406.
> >1998 194 0 375.
> >1998 195 0 332.
> >1998 196 0 310.
> >1998 197 0 528.
> >1998 198 0 530.
> >1998 199 0 387.
> >1998 200 0 385.
> >1998 201 0 349.
> >1998 202 0 409.
> >1998 203 0 399.
> >1998 204 0 619.
> >1998 205 0 658.
> >1998 206 0 581.
> >1998 207 0 445.
> >1998 208 0 370.
> >1998 209 0 326.
> >1998 210 0 334.
> >1998 211 0 384.
> >1998 212 0 423.
> >1998 213 0 412.
> >1998 214 0 404.
> >1998 215 0 370.
> >1998 216 0 384.
> >1998 217 0 383.
> >1998 218 0 378.
> >1998 219 0 461.
> >1998 220 0 460.
> >1998 221 0 400.
> >1998 222 0 447.
> >1998 223 0 373.
> >1998 224 0 379.
> >1998 225 0 374.
> >1998 226 0 374.
> >1998 227 0 391.
> >1998 228 0 348.
> >1998 229 0 303.
> >1998 230 0 279.
> >1998 231 0 312.
> >1998 232 0 331.
> >1998 233 0 298.
> >1998 234 0 341.
> >1998 235 0 493.
> >1998 236 0 436.
> >1998 237 0 400.
> >1998 238 0 633.
> >1998 239 0 630.
> >1998 240 0 583.
> >1998 241 0 547.
> >1998 242 0 550.
> >1998 243 0 499.
> >1998 244 0 444.
> >1998 245 0 427.
> >1998 246 0 401.
> >
> >On Sat, Jan 16, 2021 at 8:01 AM Rui Barradas <ruipbarradas using sapo.pt>
> >wrote:
> >
> >> Hello,
> >>
> >> Thanks for the data, it makes things easier.
> >>
> >> df1 <- read.table("Jibrin_data.txt", header = TRUE)
> >> #'data.frame': 168 obs. of 4 variables:
> >> # $ year: int 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 ...
> >> # $ day : int 1 2 3 4 5 6 7 8 9 10 ...
> >> # $ Hr : int 0 0 0 0 0 0 0 0 0 0 ...
> >> # $ SWS : num 344 346 356 332 302 329 395 359 471 392 ...
> >>
> >> Here is a simple way of converting the year and day of year columns
> >to a
> >> column of class "Date".
> >> Like others have said, there are also CRAN packages to handle
> >date/time
> >> data, my favorite being package lubridate, but base R can do it.
> >>
> >>
> >> df1$date <- as.Date(paste(df1$year, df1$day),
> >> format = "%Y %j",
> >> origin = "1998-01-01")
> >>
> >> head(df1)
> >> # year day Hr SWS date
> >> #1 1998 1 0 344 1998-01-01
> >> #2 1998 2 0 346 1998-01-02
> >> #3 1998 3 0 356 1998-01-03
> >> #4 1998 4 0 332 1998-01-04
> >> #5 1998 5 0 302 1998-01-05
> >> #6 1998 6 0 329 1998-01-06
> >>
> >>
> >> Hope this helps,
> >>
> >> Rui Barradas
> >>
> >>
> >> Às 06:48 de 16/01/21, Jibrin Alhassan escreveu:
> >> > Hi Barradas
> >> > Sorry for the delay. Below is a section of my data. I have up to
> >1826
> >> > covering 1998 to 2002
> >> > year day Hr SWS
> >> > 1998 1 0 344.
> >> > 1998 2 0 346.
> >> > 1998 3 0 356.
> >> > 1998 4 0 332.
> >> > 1998 5 0 302.
> >> > 1998 6 0 329.
> >> > 1998 7 0 395.
> >> > 1998 8 0 359.
> >> > 1998 9 0 471.
> >> > 1998 10 0 392.
> >> > 1998 11 0 346.
> >> > 1998 12 0 387.
> >> > 1998 13 0 393.
> >> > 1998 14 0 367.
> >> > 1998 15 0 320.
> >> > 1998 16 0 309.
> >> > 1998 17 0 341.
> >> > 1998 18 0 329.
> >> > 1998 19 0 322.
> >> > 1998 20 0 429.
> >> > 1998 21 0 433.
> >> > 1998 22 0 398.
> >> > 1998 23 0 393.
> >> > 1998 24 0 393.
> >> > 1998 25 0 423.
> >> > 1998 26 0 426.
> >> > 1998 27 0 429.
> >> > 1998 28 0 386.
> >> > 1998 29 0 381.
> >> > 1998 30 0 375.
> >> > 1998 31 0 365.
> >> > 1998 32 0 450.
> >> > 1998 33 0 381.
> >> > 1998 34 0 316.
> >> > 1998 35 0 351.
> >> > 1998 36 0 306.
> >> > 1998 37 0 312.
> >> > 1998 38 0 320.
> >> > 1998 39 0 339.
> >> > 1998 40 0 395.
> >> > 1998 41 0 429.
> >> > 1998 42 0 479.
> >> > 1998 43 0 495.
> >> > 1998 44 0 407.
> >> > 1998 45 0 358.
> >> > 1998 46 0 360.
> >> > 1998 47 0 382.
> >> > 1998 48 0 394.
> >> > 1998 49 0 393.
> >> > 1998 50 0 435.
> >> > 1998 51 0 408.
> >> > 1998 52 0 360.
> >> > 1998 53 0 372.
> >> > 1998 54 0 376.
> >> > 1998 55 0 379.
> >> > 1998 56 0 361.
> >> > 1998 57 0 333.
> >> > 1998 58 0 321.
> >> > 1998 59 0 344.
> >> > 1998 60 0 412.
> >> > 1998 61 0 428.
> >> > 1998 62 0 401.
> >> > 1998 63 0 369.
> >> > 1998 64 0 343.
> >> > 1998 65 0 330.
> >> > 1998 66 0 317.
> >> > 1998 67 0 296.
> >> > 1998 68 0 282.
> >> > 1998 69 0 404.
> >> > 1998 70 0 530.
> >> > 1998 71 0 525.
> >> > 1998 72 0 484.
> >> > 1998 73 0 430.
> >> > 1998 74 0 388.
> >> > 1998 75 0 347.
> >> > 1998 76 0 337.
> >> > 1998 77 0 342.
> >> > 1998 78 0 305.
> >> > 1998 79 0 329.
> >> > 1998 80 0 420.
> >> > 1998 81 0 564.
> >> > 1998 82 0 483.
> >> > 1998 83 0 385.
> >> > 1998 84 0 393.
> >> > 1998 85 0 437.
> >> > 1998 86 0 441.
> >> > 1998 87 0 434.
> >> > 1998 88 0 471.
> >> > 1998 89 0 429.
> >> > 1998 90 0 412.
> >> > 1998 91 0 370.
> >> > 1998 92 0 326.
> >> > 1998 93 0 357.
> >> > 1998 94 0 338.
> >> > 1998 95 0 380.
> >> > 1998 96 0 339.
> >> > 1998 97 0 312.
> >> > 1998 98 0 313.
> >> > 1998 99 0 327.
> >> > 1998 100 0 362.
> >> > 1998 101 0 358.
> >> > 1998 102 0 387.
> >> > 1998 103 0 397.
> >> > 1998 104 0 375.
> >> > 1998 105 0 350.
> >> > 1998 106 0 357.
> >> > 1998 107 0 472.
> >> > 1998 108 0 526.
> >> > 1998 109 0 396.
> >> > 1998 110 0 374.
> >> > 1998 111 0 376.
> >> > 1998 112 0 355.
> >> > 1998 113 0 343.
> >> > 1998 114 0 425.
> >> > 1998 115 0 426.
> >> > 1998 116 0 479.
> >> > 1998 117 0 469.
> >> > 1998 118 0 425.
> >> > 1998 119 0 344.
> >> > 1998 120 0 341.
> >> > 1998 121 0 426.
> >> > 1998 122 0 601.
> >> > 1998 123 0 476.
> >> > 1998 124 0 670.
> >> > 1998 125 0 585.
> >> > 1998 126 0 496.
> >> > 1998 127 0 479.
> >> > 1998 128 0 569.
> >> > 1998 129 0 531.
> >> > 1998 130 0 489.
> >> > 1998 131 0 484.
> >> > 1998 132 0 480.
> >> > 1998 133 0 393.
> >> > 1998 134 0 332.
> >> > 1998 135 0 327.
> >> > 1998 136 0 493.
> >> > 1998 137 0 493.
> >> > 1998 138 0 430.
> >> > 1998 139 0 396.
> >> > 1998 140 0 408.
> >> > 1998 141 0 416.
> >> > 1998 142 0 376.
> >> > 1998 143 0 375.
> >> > 1998 144 0 415.
> >> > 1998 145 0 407.
> >> > 1998 146 0 398.
> >> > 1998 147 0 352.
> >> > 1998 148 0 349.
> >> > 1998 149 0 517.
> >> > 1998 150 0 597.
> >> > 1998 151 0 480.
> >> > 1998 152 0 435.
> >> > 1998 153 0 408.
> >> > 1998 154 0 441.
> >> > 1998 155 0 397.
> >> > 1998 156 0 374.
> >> > 1998 157 0 413.
> >> > 1998 158 0 582.
> >> > 1998 159 0 513.
> >> > 1998 160 0 459.
> >> > 1998 161 0 466.
> >> > 1998 162 0 414.
> >> > 1998 163 0 354.
> >> > 1998 164 0 341.
> >> > 1998 165 0 343.
> >> > 1998 166 0 369.
> >> > 1998 167 0 411.
> >> > 1998 168 0 355.
> >> > Thanks
> >> > Jibrin
> >> >
> >> > On Fri, Jan 15, 2021 at 7:15 PM Rui Barradas <ruipbarradas using sapo.pt
> >> > <mailto:ruipbarradas using sapo.pt>> wrote:
> >> >
> >> > Hello,
> >> >
> >> > No dataset was attached. Like the posting guide says,
> >> >
> >> > No binary attachments except for PS, PDF, and some image and
> >archive
> >> > formats (others are automatically stripped off because they can
> >> contain
> >> > malicious software). Files in other formats and larger ones
> >should
> >> > rather be put on the web and have only their URLs posted. This
> >way a
> >> > reader has the option to download them or not.
> >> >
> >> >
> >> > Can you post sample data? Please post the output of `dput(df)`.
> >Or,
> >> if
> >> > it is too big the output of `dput(head(df, 20))`. (`df` is the
> >name
> >> of
> >> > your dataset.)
> >> >
> >> > Hope this helps,
> >> >
> >> > Rui Barradas
> >> >
> >> > Às 11:30 de 15/01/21, Jibrin Alhassan escreveu:
> >> > > Dear R users,
> >> > > I am very new to R software. I have solar wind speed data
> >needed
> >> > for my
> >> > > work. How do I convert day in the year to year, month, and
> >day
> >> with R
> >> > > software? I have used this code
> >> > > as.Date(0, origin = "1998-01-01")
> >> > > but it can only convert one day of the year at a time.
> >Meanwhile,
> >> > I have up
> >> > > to the 1998-2002 data set. Attached is my data.
> >> > > Kindly help, please.
> >> > > Jibrin Alhassan
> >> > > ______________________________________________
> >> > > R-help using r-project.org <mailto:R-help using r-project.org> mailing
> >list
> >> > -- To UNSUBSCRIBE and more, see
> >> > > https://stat.ethz.ch/mailman/listinfo/r-help
> >> > > PLEASE do read the posting guide
> >> > http://www.R-project.org/posting-guide.html
> >> > > and provide commented, minimal, self-contained, reproducible
> >code.
> >> > >
> >> >
> >>
> >
> > [[alternative HTML version deleted]]
> >
> >______________________________________________
> >R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >https://stat.ethz.ch/mailman/listinfo/r-help
> >PLEASE do read the posting guide
> >http://www.R-project.org/posting-guide.html
> >and provide commented, minimal, self-contained, reproducible code.
>
> --
> Sent from my phone. Please excuse my brevity.
>
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