[R] NaN
Mulholland, Tom
Tom.Mulholland at dpi.wa.gov.au
Mon Mar 21 07:45:35 CET 2005
type ?NaN and the help will tell you.
> -----Original Message-----
> From: Brett Stansfield [mailto:brett at hbrc.govt.nz]
> Sent: Monday, 21 March 2005 12:10 PM
> To: R help (E-mail)
> Subject: [R] NaN
>
>
> Dear R
> What does NaN mean?
> I recently did a correlation on a batch of data for some
> reason it didn't
> like one column
> cor(sleep,use="complete.obs")
> BodyWt BrainWt SlowSleep ParaSleep TotalSleep
> BodyWt 1.00000000 0.95584875 -0.3936373 -0.07488845 -0.3428373
> BrainWt 0.95584875 1.00000000 -0.3867947 -0.07427740 -0.3370815
> SlowSleep -0.39363729 -0.38679474 1.0000000 0.51824287 0.9676730
> ParaSleep -0.07488845 -0.07427740 0.5182429 1.00000000 0.7171864
> TotalSleep -0.34283732 -0.33708151 0.9676730 0.71718643 1.0000000
> Lifespan 0.46982146 0.62938940 -0.3722345 -0.26834006 -0.3824462
> Gestation 0.71434413 0.73353206 -0.6061048 -0.40893177 -0.6144743
> PredIndex 0.09588524 -0.01538017 -0.3526558 -0.39795310 -0.4047155
> ExposeIndex 0.40563880 0.32318968 -0.5802789 -0.50363338 -0.6213578
> DangerIndex 0.25932512 0.15093686 -0.5346247 -0.57194862 -0.6043029
> logbrw 0.47461094 0.53992522 -0.6302266 -0.36884187 -0.6223073
> loglife 0.37351520 0.45819097 -0.3549184 -0.38521174 -0.4028017
> loggest 0.41308558 0.45045240 -0.5754478 -0.57234786 -0.6376850
> logbw 0.50905390 0.52255094 -0.6603217 -0.26930774 -0.6174775
> logpara NaN NaN NaN NaN NaN
> Lifespan Gestation PredIndex ExposeIndex
> DangerIndex
> BodyWt 0.46982146 0.71434413 0.09588524 0.4056388
> 0.25932512
> BrainWt 0.62938940 0.73353206 -0.01538017 0.3231897
> 0.15093686
> SlowSleep -0.37223446 -0.60610477 -0.35265576 -0.5802789
> -0.53462471
> ParaSleep -0.26834006 -0.40893177 -0.39795310 -0.5036334
> -0.57194862
> TotalSleep -0.38244618 -0.61447431 -0.40471545 -0.6213578
> -0.60430286
> Lifespan 1.00000000 0.64638866 -0.16973575 0.3157456
> 0.01468596
> Gestation 0.64638866 1.00000000 0.09079823 0.5734727
> 0.30623551
> PredIndex -0.16973575 0.09079823 1.00000000 0.6256876
> 0.92731729
> ExposeIndex 0.31574564 0.57347265 0.62568764 1.0000000
> 0.78980702
> DangerIndex 0.01468596 0.30623551 0.92731729 0.7898070
> 1.00000000
> logbrw 0.73584286 0.78178948 0.07112786 0.6132218
> 0.28600619
> loglife 0.87677362 0.63260838 -0.09023386 0.5042496
> 0.14082719
> loggest 0.56014783 0.88539870 0.09040680 0.5830778
> 0.30998808
> logbw 0.64683285 0.75938272 0.13046983 0.6473671
> 0.33957121
> logpara NaN NaN NaN NaN
> NaN
> logbrw loglife loggest logbw logpara
> BodyWt 0.47461094 0.37351520 0.4130856 0.5090539 NaN
> BrainWt 0.53992522 0.45819097 0.4504524 0.5225509 NaN
> SlowSleep -0.63022657 -0.35491836 -0.5754478 -0.6603217 NaN
> ParaSleep -0.36884187 -0.38521174 -0.5723479 -0.2693077 NaN
> TotalSleep -0.62230729 -0.40280169 -0.6376850 -0.6174775 NaN
> Lifespan 0.73584286 0.87677362 0.5601478 0.6468328 NaN
> Gestation 0.78178948 0.63260838 0.8853987 0.7593827 NaN
> PredIndex 0.07112786 -0.09023386 0.0904068 0.1304698 NaN
> ExposeIndex 0.61322176 0.50424965 0.5830778 0.6473671 NaN
> DangerIndex 0.28600619 0.14082719 0.3099881 0.3395712 NaN
> logbrw 1.00000000 0.79233406 0.7771888 0.9514144 NaN
> loglife 0.79233406 1.00000000 0.6417551 0.7079108 NaN
> loggest 0.77718882 0.64175514 1.0000000 0.7069276 NaN
> logbw 0.95141435 0.70791078 0.7069276 1.0000000 NaN
> logpara NaN NaN NaN NaN 1
>
> for some reason log para has this NaN symbol come up
>
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