Re: [R] How to use breaks argument in hist() function correctly?

[Stephen Ellison]

> When I had breaks = 18, I get total number of cells as 16, which is
> same when I put breaks = 20
>
> In the 2nd case I was expecting total number of cells (i.e. bars) as
> 20 i.e. if I understand the documentation correctly I should expect
> total number of cells (bars) should be same as breaks argument in
> hist() function.

You do not _quite_ understand the documentation correctly.
?hist says
"In the last three cases the number is a suggestion only; as
the breakpoints will be set to 'pretty' values"
That includes specification of a single number of breaks.

> How to make that happen?
Specify a vector of breaks with 20 intervals (21 values). 
For example,
breaks=seq(-450, 350, length.out=21)
This gives a bin width of 4e5. 

S Ellison



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Re: [R] How to use breaks argument in hist() function correctly?

[Jim Lemon]

Hi Cristofer,
If you just ask for a number of breaks, you will get what "hist"
thinks you should. Try this or something similar:

hist(x,breaks=seq(min(x),max(x),length.out=21))

Jim

On Wed, Sep 18, 2019 at 8:55 PM Christofer Bogaso
 wrote:
>
> Hi,
>
> I have a numerical vector as below
>
> x = c(92958.2014593977, -379826.025677203, 881937.411562002, 25761.5278163719,
> -11837.158273897, 48450.8089746788, -415505.62910869, -168462.98512054,
> 328504.255373387, -298966.051027528, 237133.794811816, -49610.1148173768,
> -92459.1170329526, -261611.557495123, -314388.27876, -432257.362693919,
> -1031328.04402229, 79654.3696754137, 107072.114744956, -43384.1420067487,
> 410881.767122128, 1107540.47690119, -187319.627164858, -363126.966946238,
> 264885.548330589, -127020.002396109, 150315.10537545, 609502.016523236,
> 218679.801620448, 901573.599806465, 8289.59210428538, -860908.637977889,
> 39680.5921457494, -70270.7462533897, 1135442.61429015, 133964.991179536,
> 1603815.51357657, 2509929.42959337, 193680.587201446, -167020.153065672,
> -55258.5415736386, -121185.161514792, -1003115.2769274, 1345368.12703686,
> 91665.388397883, 137350.320344812, 29866.332965572, 558999.444304371,
> 523687.79187, -867194.523170726, -271190.308507375, -423629.796389981,
> 96407.0505512169, 193397.770743584, -1231855.39144784, 324272.89909045,
> -1586859.60653751, 252986.272621096, -1008329.14877038, -24090.2255466315,
> 159815.745712707, 969037.929787668, -586905.922684562, 573133.370665267,
> -285493.361916026, -368392.707593945, -199242.654709143, 151002.480443041,
> -678758.615800119, 467477.65504, -267683.37512503, -1541813.6353232,
> -6723.49019530666, 373.233886695949, 59116.2440402955, -1369030.26511923,
> 1527024.1822942, 63951.299612343, -535128.407281035, 304507.377244809,
> 141771.552178838, 98963.774668207, 10810.9015935012, 1022008.90830883,
> 276804.330003406, -304607.247552493, -15767.6578367545, -204454.923166458,
> 722866.275157944, 137685.886832198, 590201.29119819, 904805.824902981,
> -47417.8588758472, 55097.1936075327, 144426.170076371, 1020559.38779514,
> -7019.11334737329, 488224.043025845, -28272.5766026849, -295384.449673914,
> -93475.8799719289, -367939.725072447, -1244135.36327203, -863835.124327735,
> -1399240.55792133, 241146.794430078, -96612.1109580967, -9159.41140641969,
> -240291.731366074, -7482.02181888149, 71427.8225121907, -228401.89341468,
> 948738.649629141, -327368.940001115, -53374.866091836, 126448.573738739,
> 344962.4459403, 270571.141270723, 746988.197131718, -253220.465177424,
> -362652.833437272, -4385.56796251462, -114398.64639441, 454240.63525686,
> -1239567.92855698, -389939.987378005, -364083.196493484, 24693.1882238397,
> 4635.22406457209, 57992.688805147, -67934.5184434773, 123034.937557127,
> 483909.751375248, -167441.867070132, -382537.019103907, 267584.10264059,
> -188944.743935369, -47062.5409102427, -860201.712919788, -203096.090898701,
> 44317.9727734545, 375924.206160012, 67000.7086638517, 137607.783105903,
> -306430.502044082, -669552.84790218, -72629.0354820569, 251145.827045551,
> -230557.16727732, -112594.52630222, 74052.4425890159, -105774.458850881,
> -241185.430318678, -296663.488112722, 156807.699193046, -520102.742784345,
> -56451.5201730288, -23171.0259034268, -107945.719878344, -158480.929620835,
> -769507.414580615, -83077.050717928, 477248.698330914, 27706.3803488034,
> 70485.7144565997, 302213.341425514, -322119.331851626, -476228.406727923,
> -99453.524756431, -673693.791106482, 38765.0473434452, 63302.3087165867,
> 116619.019966859, -167803.424492692, 82982.1864557734, -262627.809345438,
> 643538.235642472, -90724.2065826313, -435531.286293254, -371820.753318447,
> -224713.223837607, -538987.838068522, -195841.454277966, 13924.6120356087,
> -415252.7309228, 209424.879456433, 485624.048364534, 74317.8482029741,
> 19994.939065553, -460452.302259829, -141374.457424938, -77310.8968822459,
> 56112.3979095014, -150891.122921784, -679395.088755517, -523803.739201696,
> -69888.2239139985, -4463.34352237508, -63616.8025699607, 906704.585396864,
> 1096575.89875834, -382869.397851591, -624324.630106468, -468837.009485095,
> -49963.2943695135, 17038.2753380311, 756286.614911188, -995536.510249994,
> 308899.601761641, -375123.707808525, -113921.428586057, -61573.6957341075,
> 55239.3511454715, -46731.8391379398, 697843.754042485, 265162.29364751,
> 1133747.94683337, -355974.319924194, 30699.0482856455, -19680.791041683,
> -624454.313911307, 94983.7375389124, 744849.080038272, 172732.610815633,
> -120546.157860821, 62579.2205127864, -621204.554941904, 293869.359181081,
> -108505.317455271, 646163.583792489, -502636.630380265, 502413.155645464,
> -49238.362688755, 108812.985894042, -139113.621347874, 1120034.73283877,
> -296008.55142246, -845627.626734492, 116082.364002893, 85096.4224949463,
> -84149.6401610159, 611729.398657364, -783642.839894851, -9788.4825023263,
> -58734.3009729933, -110950.384570162, -53258.3833170316, -20519.0858192393,
> 

[R] How to use breaks argument in hist() function correctly?

[Christofer Bogaso]

Hi,

I have a numerical vector as below

x = c(92958.2014593977, -379826.025677203, 881937.411562002, 25761.5278163719,
-11837.158273897, 48450.8089746788, -415505.62910869, -168462.98512054,
328504.255373387, -298966.051027528, 237133.794811816, -49610.1148173768,
-92459.1170329526, -261611.557495123, -314388.27876, -432257.362693919,
-1031328.04402229, 79654.3696754137, 107072.114744956, -43384.1420067487,
410881.767122128, 1107540.47690119, -187319.627164858, -363126.966946238,
264885.548330589, -127020.002396109, 150315.10537545, 609502.016523236,
218679.801620448, 901573.599806465, 8289.59210428538, -860908.637977889,
39680.5921457494, -70270.7462533897, 1135442.61429015, 133964.991179536,
1603815.51357657, 2509929.42959337, 193680.587201446, -167020.153065672,
-55258.5415736386, -121185.161514792, -1003115.2769274, 1345368.12703686,
91665.388397883, 137350.320344812, 29866.332965572, 558999.444304371,
523687.79187, -867194.523170726, -271190.308507375, -423629.796389981,
96407.0505512169, 193397.770743584, -1231855.39144784, 324272.89909045,
-1586859.60653751, 252986.272621096, -1008329.14877038, -24090.2255466315,
159815.745712707, 969037.929787668, -586905.922684562, 573133.370665267,
-285493.361916026, -368392.707593945, -199242.654709143, 151002.480443041,
-678758.615800119, 467477.65504, -267683.37512503, -1541813.6353232,
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276804.330003406, -304607.247552493, -15767.6578367545, -204454.923166458,
722866.275157944, 137685.886832198, 590201.29119819, 904805.824902981,
-47417.8588758472, 55097.1936075327, 144426.170076371, 1020559.38779514,
-7019.11334737329, 488224.043025845, -28272.5766026849, -295384.449673914,
-93475.8799719289, -367939.725072447, -1244135.36327203, -863835.124327735,
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-1239567.92855698, -389939.987378005, -364083.196493484, 24693.1882238397,
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